Hi Magroc,
Thanks for the feedback! I probably won't be able to do all your suggestions (like switching to a boat), it certainly gives me some inspiration.
I will add police chases at one point. Not sure how far I will take it though. It will be something between a brief encountering like in the original game and a full blown chase like in Need for Speed. (I won't be adding the shooting stuff though.)
I certainly would like to add the following cars: Porsche Carrera/930, and KITT from Knight Rider. Maybe the Jaguar as well. Thanks for the links to the 3D models! And if you're able to, you can certainly try to draw a car!
I'm about to add fuel consumption in my new game mode: cruising. You'll have to stop at a gas station to add more fuel and perhaps repair it at a garage.