I found an awesome Car wallpaper App in Android Market (Work best for Nexus One/S, Galaxy Tab)
It has more than 4,000 categories and major brands includes:
* Ferrari, Lamborghini
* Acura, Aston Martin, Audi
* BMW, Bentley, Bugatti
* Dodge, Kia, Lexus
* Rolls Royce, Jaguar
* Porsche, Peugeot
* Caterham, Chrysler
* Suzuki, Infiniti, Volkswagen
* Zenvo
For Galaxy Tab
Ferrari collections:
Free download at android market
https://market.android.com/details?id=com.nasthon.gwall
It has more than 4,000 categories and major brands includes:
* Ferrari, Lamborghini
* Acura, Aston Martin, Audi
* BMW, Bentley, Bugatti
* Dodge, Kia, Lexus
* Rolls Royce, Jaguar
* Porsche, Peugeot
* Caterham, Chrysler
* Suzuki, Infiniti, Volkswagen
* Zenvo
For Galaxy Tab
Ferrari collections:
Free download at android market
https://market.android.com/details?id=com.nasthon.gwall