there is a small design issue in your models:
whilst using lots of polygons for the tires (that will probably rotate most of the time and are black), the other parts and the main shape of the cars are very blocky.
It should be the other way roung. Just a few chamfered edges would do wonders.

Also you should rework the textures quite a bit. add some details and basic shading to the model to save tris. just a plain color map aint gonna work.

And - I know its old fashioned and some might not agree- close the mesh! You might run into unnecessary and ugly rendering issues in some applications. Also the designer might need to flip the model and so on.
its just a few faces and texels but in the end they can make the difference.

cheese and have a nice one

A priced package should consist both - lowpoly and highpoly (and more textures per model).
About the quality I accord to the states of the known model designer in this thread but i like the general shape of the cars.

All in all i love to see more toon content for 3DGS - keep on!

Yes, more Toon Style 3D Content comes, for sure. I create a compled toon style contect, to create a compled game with this. Frogger Clone, Toon Racer Game and so on. With all what the game needs, but without code. 3D Objects, Sound and SFX.
Step by step!

Here a new WIP car with more polys:

looks much better then before!
xxxxxxx

I hope in the next week it is done!

use this for reference:

http://www.turbosquid.com/Search/Index.cfm?keyword=comic+car&x=0&y=0

your cars are to basic...

Yes...it is the goal from this toon pack.
Your example is not really helpfully, because i see toon cars, yes...but take a look at the poly count, i think you don`t understand the reason for my lowpoly toon pack.

What is your polycount?
And what is the software you use?

This is too much low poly even for Iphone !
And don't forget mobile platform are growing in power :
Iphone 2, Ipad 2 etc ...

Your models only would be good for display in far distance with LOD, but you need lot more detail for car near the camera !





Don't forget this beautifull game is running on a tiny Iphone
, and not a Bigpowerfull PC with A8 !
So 3D art really matters, not only power and engine.

So make somehting really good looking, go to hard work
(post on Polycount forums , people will help you on making
something better and great) !