Hi sengming!

Whenever you buy a car and controller set, that's the normal controller, called the Digi Propo. Even if the controller is a special color, it's still a regular controller. The programmable controller, called the Digi Propo Special, is blue in color and has an LED screen. If you browse through the threads on this forum, you should find some excellent pictures of the Propo Special! The Propo Special is sold alone, and does not come packed with any car. Here's a few sites that sell the Propo Special Controller:
Sigma Automotive
CosmoGames
Kid Robot

The best prices I found was at Cosmogames. But Sigma Automotive carries a LOT more DigiQ items!

The normal DigiQs don't have turning front wheels. Only 2 of the new DigiQs have turning front wheels - the AE86 Trueno and the Mazda RX-7. But don't think that's bad - they are all very good at controlling, and they're all really fun to play with!

Personally I'm going to buy the Trueno next, or the Mazda RX-7. I have the NSX-R and I plan on owning all of the Type R line, which is just 4 cars for now. The Type R cars were just released on December 24 so they're very new.

I hope the info was helpful, but go through more of the threads on this forum so you can learn more before you buy your first DigiQ