If you have not bought a Ford Mustang GT Coupe and a Ford Mustang GT Convertible, do so. Take them to the U.S. Muscle Car Tuner shop. When you get there they will ask whether you want them tuned as a Ford or a Saleen. Press Down and select "Saleen". The new car(s) will have a very visible sign that says "Saleen" at the top of the windshield. They will also be upgraded to C/D class cars.
Cars
G-Class Cars
AC 289
Aston Martin DB4 GT Zagato
Chevrolet Camaro Z-28
Chevrolet Corvette 1969 Stingray
Jaguar Type-E Coupe
Lamborghini Miura P400SV
Maserati 3500 GT
Mercedes-Benz 300 SL Gullwing
Pontiac Firebird
Shelby Cobra Daytona Coupe
Shelby GT 500
F-Class Cars
Alfa Romero GT 3.2 V6 24V
Audi A3 3.2 Quattro DSG
Audi TT Quattro Sport
Chevrolet SSR
Saturn Sky
Volkswagen Golf R32
E-Class Cars
Audi A6 4.2 Quattro
Audi S4 Cabriolet
Ford Mustang GT Coupe
Ford Mustand GT Convertible
Jaguar XK Convertible
Jaguar XK Coupe
Nissan 350Z Coupe
Nissan 350Z Nismo S-Tune
Nissan Skyline GTR R34 (XBLC)
Pontiac GTO
D-Class Cars
Aston Martin DB9 Coupe
Aston Martin V8 Vantage
Aston Martin DB9 Volante
Aston Martin DB7 Zagato
Audi RS4 Quattro Saloon (XBLC)
Cadillac XLR-V
Crystler 300C SRT-8
Jaguar XKR Coupe
Lotus Elise R
Lotus Esprit V8
Maserati GranSport
Maserati Spyder 90th Aniversary
Maserati Spyder Cambiocorsa
Mercedes-Benz CLK 55 AMG
Mercedes-Benz CLS 55 AMG
Mercedes-Benz SLK 55 AMG
Mustang GT-R Concept
Wiesmann Roadster MF3
C-Class Cars
Alfa Romero 8c Competizone
Aston Martin Vanquish S
Chevrolet Corvette C6 Coupe
Crystler Fire Power Concept Car
Ferrari 288 GTO
Ferrari 575M Marenello
Lamborghini Gallardo Spyder
Lotus Sport Exige 240R
Mercedes-Benz SL 65 AMG
Noble M14
Spyker C8 Laviolette
TVR Sagaris
TVR Tuscan S
Volkswagen W12 Roadster
B-Class Cars
Ascari KZ-1
Caterham CSR 260
Chevrolet Corvette Z06 Coupe
Dodge Viper SRT-10
Farbound Supercharged GTS Prototype 2005
Ferrari F430
Ferrari F430 Spider
Ford GT
Jaguar XJ220
Lamborghini Gallardo Coupe (XBLC)
Lamborghini Gallardo SE
Mercedez-Benz CLK DTM AMG
Noble M12 GTO-3R
Shelby Cobra Concept
Shelby GR-1 Concept
Volkswagen W12 Coupe
A-Class Cars
Chrysler ME Four-Twelve
Ferrari Enzo
Koenigsess CC8S
Lamborghini Murcielago Coupe
Maserati MC12
Mclaren F1
Mclaren F1 GTR
Mclaren F1 LM (XBLC)
Mercedes-Benz SLR McLaren
Pagani Zonda C12S Roadster (XBLC)
Pagani Zonda C12S
Saleen S7 Twin-Turbo
At the top of the map where the 180 on winding road is found (top right), there is like a barn/houses area which is fenced off. There is an open gate. Drive through slowly, and you will go downhill and need to turn right. Stay near the water so you do not lose power. If you have enough speed (over 10 mph) you should work your way up the hill. Note: There are no walls in the buildings.
Donuts
Hold Brake + Gas. Then, steer left or right and release Brake.
Easy money
Once you reach the Pro level, do the speed race called "170 mph in heavy traffic". When you start, go to the opposite side of the freeway, so you are going with traffic. Once you finish, do not press A. Keep re-trying until you reach your desired limit. Note: A fast car (over 190 mph) is recommended.
Go into your Achievements screen and check what you need. Try purchasing cars such as three Fords, three Aston-Martins, etc. You will know what cars you need by looking in the purchases area of your achievements. To gain enough money to buy the cars, keep repeating the 170 mph race. Once you have completed enough achievements to become a champion, repeat the Alfa Challenge in the Competezione car that should cost you nothing. You will receive $75,000 for each win.
Go to the bottom of the map by the crater. There is a speed challenge there that awards $40,000. A C-Class car is required (TVR Sagaris recommended). You can do it in about 1:30 to 2 minutes and get $40,000, which results in about $1,200,000 after one hour.
Once you reach the "Champion" rank, get $305,000 and buy the Farboud Supercharged GTS Prototype at the northern region of the map, in the McLaren-Noble-Ascari-Farboud dealership. Then go to its tuning shop, in the eastern part of the island along the shore. Buy the best mods for it. In the city east of the southern airport (where you started and where most of everything is found), there is a speed race called 180 mph Downtown. Start it with the car. Immediately turn around when you start. There are no cameras to pass. Simply reach 180 mph and press A to finish. With the upgrades, if you do not hit any cars you should get to the speed in about 20 seconds. Repeat this for another easy $75,000. This can result in about $1,000,000 in less than eight minutes.
Once you get to "Champion" rank, complete the Tour Of The Island race if you have not already done so. After completing the Tour Of The Island race, you will get the Alfa Romeo 8c Competizione. There is a race on the main highway called "Alfa Romeo Day". Every car in this race will be an F class Alfa Romeo while you will have the C class Alfa Romeo. The race is about 2.8 miles long on a near straight-a-way. You will earn $75,000 for the race.
Once you are at "Champion" rank, do the "Alfa Romeo Day" race. Use the Alfa Romeo 8c Competizione. Everyone else will have different slower cars. The race is on the highway with no cars and is only 2.8 miles long. It is worth $75,000. Keep repeating this for easy money.
Find the highway and go to a spot near but not too close to an intersection. Find a racer and get them to have a Instant Challenge with you. Set the finish line just behind the start line on the opposite side of the highway. Once the race starts immediately turn over the center of the highway and drive past the finish line. Do this five or ten times then do a race that is worth about $20,000. You will get a lot of money for the win. Note: This does not always work.
Once you reach the Expert level, there is an easy race called "Lucky Day". It only lasts about two minutes and results in $40,000 every time. Try using the Kawasaki Ninja ($14,000) with the stage 3 tuning package ($25,000).
After reaching champion level, buy a Ford GT and level 3 upgrades for it. On the southwest side of the island is a race called Ford Day. It is only about 1.7 or 1.9 miles long. If you are a skilled driver you should be able to do it in about one minute and bank $75,000 each time.
Buy at least twelve to fifteen Ford Mustang GT Coupes. Upgrade them at the U.S. Tuner with a Stage 3 Saleen package. Put them up for sale for around $1,000,000 each. If you have enough cars up for sale, eventually the CPU players will buy them.
Easy Tour of Island wins
Part 1a
First have a car that is a class D-A or either class bike. Next, when you start the Tour of Island race, go to the part in the beginning when it wants you to go on the wrong side of the road onto the freeway. Go straight, then follow the way there (you will be on the right side of the road).
Part 1b
Near the part that you go to the left and drive around that fence, go straight and it will be fast (stay on the side that goes the right way).
Part 2
Near the end, when you are on the freeway, continue going straight and when it tells you to go to the left. Then finish the race and you will win (99.9% of the time if you do it right)
Note: I have done this cheat in a class G vehicle and I won. It wasn't the Shelby Daytona Coupe, it was a Lamborghini!
Editor mode
Reach the "Pro" rank.
Ford Island
Achieve Expert rank.
Ford Mustang GT-R Concept
Complete all Vehicle Transpot driving missions.
Ford Shelby Cobra Concept
Complete all Top Model driving missions.
Ford Shelby GR-1 Concept
Complete all Speed challenges with Golds.
Get anywhere in the map
You must be at least Pro level for this trick. Press Start while in Free Drive mode. Select "Editor", then make anything (just skip). At the map section, make a small race that takes place wherever you need to go. Even though there is a cross through a circle, you are off the road then.
May the Best Man Win
Reach the "Champion" rank (450 achievement points).
Money
When you reach Expert level a new timed race will show up called "The Millionaires Challenge" which is a $1,000,000 race... The best way to win this race is to buy a MV Agusta motorcycle, and upgrade it to level 3. Then you can race the race with only a type "A" car, or motorcycle. You can do the race as many times that you wish.
Oahu Raceway
Achieve Pro rank.
Paint shops
Get Gold on Around the Crater Race.
Photo mode
Reach the "Amateur" rank.
Police
When playing the game offline there are police which can catch and fine you. When on Xbox Live there are still police badges but no police around to catch you. This is useful if you are prone to being caught.
Tasks
Execute the described task to get the following tasks done:
Effect - Code
*ecko unltd. COLLECTOR - Own at least 10 *ecko unltd. items.
AMATEUR COLLECTOR - Own at least 4 different cars.
ASTON MARTIN COLLECTOR - Own at least 3 different ASTON MARTIN.
BEN SHERMAN COLLECTOR - Own at least 10 BEN SHERMAN items.
BIKE COLLECTOR - Own at least 3 different bikes.
CHEVROLET COLLECTOR - Own at least 3 different CHEVROLET.
CLUB MEMBER - Create a Club or become a member of an existing Club.
CLUB RACE VICTORIES - Take 3 victories in Inter-Club races.
CONFIRMED COLLECTOR - Own at least 10 different cars.
CUSTOM CHALLENGE VICTORIES - Take 2 victories in the custom challenges of the Drive-Ins.
EAGLE-EYED DRIVER - Cover 5,000 miles (8,000 km).
EASYGOING TOURIST - Cover 30 miles (48 km).
EXPLORER - Discover all the roads on the island.
EXTREME COLLECTOR - Own at least 50 different models of cars.
FERRARI COLLECTOR - Own at least 3 different FERRARI.
FORD COLLECTOR - Own at least 3 different FORD.
INSTANT CHALLENGE VICTORIES - Take 5 victories in Instant Challenges.
ISLAND TOUR - Win the Gold cup in the "Island Tour" challenge.
LAMBORGHINI COLLECTOR - Own at least 3 different LAMBORGHINI.
MERCEDES-BENZ COLLECTOR - Own at least 3 different MERCEDES-BENZes.
MOST VARIED COLLECTOR - Own at least 20 different cars.
MULTIPLAYER VIC. - LEVEL 1 - Take 3 victories in multiplayer races. Only RANKED MATCHES are counted.
MULTIPLAYER VIC. - LEVEL 2 - Take 15 victories in multiplayer races. Only RANKED MATCHES are counted.
MULTIPLAYER VIC. - LEVEL 3 - Take 30 victories in multiplayer races. Only RANKED MATCHES are counted.
OWNER (20) Own at least 2 houses.
REAL-ESTATE TYCOON - Own at least 15 houses.
SEASONED TRAVELLER - Cover 1,000 miles (1,600 km).
SHARING CUSTOM CHALLENGES - Share 3 custom challenges in the Drive-Ins.
SINGLE PLAYER RACE CHALLENGES - Win the Gold cup in ALL the Single Player RACES challenges.
SINGLE PLAYER SPEED CHALLENGES - Win the Gold cup in ALL the Single Player SPEED challenges.
SINGLE PLAYER TIME CHALLENGES - Win the Gold cup in ALL the Single Player TIME challenges.
SINGLE PLAYER VIC. - LEVEL 1 - Win the Gold cup in 5 Single Player challenges.
SINGLE PLAYER VIC. - LEVEL 2 - Win the Gold cup in 10 Single Player challenges.
SINGLE PLAYER VIC. - LEVEL 3 - Win the Gold cup in 20 Single Player challenges.
SINGLE PLAYER VIC. - LEVEL 4 - Win the Gold cup in 40 Single Player challenges.
SINGLE PLAYER VIC. - LEVEL 5 - Win the Gold cup in 60 Single Player challenges.
SINGLE PLAYER VIC. - LEVEL 6 - Win the Gold cup in all Single Player challenges.
SMALL COLLECTOR - Own at least 2 different cars.
STEADFAST TOURIST - Cover 200 miles (320 km).
SUCCESSFUL MISSIONS - LEVEL 1 - Successfully complete 3 missions (Top-Model, Hitchhiker, Vehicle Transport or Courier).
SUCCESSFUL MISSIONS - LEVEL 2 - Successfully complete 15 missions (Top-Model, Hitchhiker, Vehicle Transport or Courier).
SUCCESSFUL MISSIONS - LEVEL 3 - Successfully complete 40 missions (Top-Model, Hitchhiker, Vehicle Transport or Courier).
SUCCESSFUL MISSIONS - LEVEL 4 - Successfully complete ALL the missions (Top-Model, Hitchhiker, Vehicle Transport or Courier).
TRADE - Buy or sell a vehicle from/to another member on TRADE.
TRAVELLER - Cover 400 miles (640 km).
TUNER - Buy a performance pack for one of your vehicles in a Tuning Shop.
The Legendary Record
Reach the "Champion" rank (450 achievement points).
The Reward
Reach the "Expert" rank (180 achievement points).
Tuner shops
Achieve Amateur rank.
Volkswagen W12 Coupe
Complete all Time challenges with Golds.
Volkswagen W12 Roadster
Complete all Hitch-Hiker driving missions.
Walmaealamae Haven of Peace
Discover all roads on the island and you will be given this house.