Oahu Raceway - Reach the "Pro" rank to unlock the Oahu Raceway.

The Reward multiplayer race challenge - Reach the "Expert" rank (180 achievement points) to unlock The Reward multiplayer race challenge.

Ford Island race challenge - Reach the "Expert" rank (180 achievement points) to unlock the Ford Island race challenge.

The Legendary Record multiplayer race challenge - Reach the "Champion" rank (450 achievement points) to unlock The Legendary Record multiplayer race challenge.

May The Best Man Win multiplayer race challenge - Reach the "Champion" rank (450 achievement points) to unlock the May The Best Man Win multiplayer race challenge.

All challenges - Reach the "Champion" rank (450 achievement points) to unlock all challenges.

Chrysler Firepower Concept Car - Win the Gold Cup in all Transporter extra challenges to unlock the Chrysler Firepower Concept Car.

Chrysler ME FOUR-TWELVE - Win the Gold Cup in all Race solo challenges to unlock the Chrysler ME FOUR-TWELVE.

Ford Mustang GT-R Concept - Win the Gold Cup in all Convoy extra challenges to unlock the Ford Mustang GT-R Concept.

Ford Shelby Cobra Concept - Win the Gold Cup in all Top Model extra challenges to unlock the Ford Shelby Cobra Concept.

Ford Shelby GR-1 Concept - Win the Gold Cup in all Speed solo challenges to unlock the Ford Shelby GR-1 Concept.

Volkswagen W12 Coupe - Win the Gold Cup in all Time solo challenges to unlock the Volkswagen W12 Coupe.

Volkswagen W12 Roadster - Win the Gold Cup in all Hitchhiker extra challenges to unlock the Volkswagen W12 Roadster.

Photos mode - Reach the "Amateur" rank to unlock Photos mode.

Editor mode - Reach the "Pro" rank to unlock Editor mode. In this mode, you can create custom challenges or modify already created challenges.

Tuner shops - Reach the "Amateur" rank to unlock the tuner shops.

Walmaealamae Haven of Peace - Drive along every road on the island to unlock the Walmaealamae Haven of Peace house, which has a 10-car garage, for purchase from any real estate agency.

Chronopack - Buy two vehicles to unlock the Chronopack.

Easy money - 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.

Take the highway to a spot near but not too close to an intersection. Find a racer and get them to do an Instant Challenge with you. Set the finish line just behind the start line on the opposite side of the highway. When the race begins, immediately turn over the center of the highway and drive past the finish line. Do this five or ten times and 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.

C/D class Saleens - Take a Ford Mustang GT Coupe and/or Ford Mustang GT Convertible to the U.S. Muscle Car Tuner shop. They will ask whether you want them tuned as a Ford or Saleen. Press Down and select "Saleen". The new car(s) will have a sign that says "Saleen" at the top of the windshield. They will also be upgraded to C/D class cars.

Recommended cars for each class - This following is a list of the best overall cars and bikes for each class. Note: This is assuming you have the best performance kit for each vehicle without bringing it out of its class (mostly level 3). The first vehicle to appear is the best of the class overall. Others, such as the CC8S in A-class might be a better choice for long, straightforward courses. For the MA-class, the MV Agusta is better in all stats than the Kawasaki, but some prefer it because it is much cheaper than the MV Agusta and also because of its first gear being longer.

G-class -Shelby Cobra Daytona Coupe (great top speed, acceleration, and handling for its class, but has to be unlocked first; has stats similar to C or B car)

Lamborghini Muira P400SV (good top speed, 198 mph)

Aston Martin DB4 GT Zagato (good handling and lack of drift; costs $3,000,000; level 3 kit $80,000)

A-class

Saleen S7 Twin-Turbo (best for acceleration 93%; and great top speed 250 mph)
Koenigsegg CC8S (best for extremely high speed, 263+ mph)
Enzo Ferrari (best for handling, 100% from the start; braking, acceleration, 90%; and lack of drift)

B-class

Ford GT (best for acceleration and braking power; same top speed as Dodge Viper SRT-10)
Dodge Viper SRT-10 (slightly better handling than Ford GT)
Farboud Supercharged GTS Prototype 2005 and Jaguar XJ220 (best for top speed)

C-class

TVR Sagaris (best for acceleration)
Lamborghini Gallardo Spyder (best for handling, 94%)
Noble M14 (best for top speed, 208 mph)

D-class

Aston Martin DB9 Coupe
Cadillac XLR-V

E-class

Nissan Skyline R34 GT (downloadable content only)
Nissan 350Z NISMO S-Tune
Audi S4 Cabriolet

F-class

Audi TT Quattro sport

MB-bikes

MV Agusta F4 Brutale 910S (best for top speed)

Kawasaki Z1000 (best for acceleration)

MA-bikes

MV Agusta F4 Tamburini (best for top speed, 220 mph without drafting; handling, 100%; acceleration, 93%; braking power. 96%; and lack of drift; $45,000; level 3 kit $40,000)

Kawasaki Ninja ZX-10R (has same handling as MV Agusta, but top speed, braking power, and acceleration are worse; $14,000; level 3 kit $25,000)

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

MB-Class Motorcycles

Ducatti Monster S4R
Ducatti Supersport 1000 DS

Kawasaki Z1000

MV Agusta F4 Brutale 910S

Triumph Speed Triple

MA-Class Motorcycles

Ducatti 999R

Kawasaki Ninja ZX-10 R

MV Agusta f4 Tamburini