Back in 2005, Stainless updated their C1 vehicles with new paintover textures based on the original ones for the Carmageddon project on Gizmondo.
Even if the game was cancelled, they still have the resources and they decided to use them for the new iPad/Android (you can see it from the C1 history on this site or simply in the gameplay video).
I decided to update C1 Project X with its new texture.
And the C2 port of Cleaver.
Here are comparison shots:
Project X before:
If you want to check them out, downloads are available at Road Reaction.
Project X in the C1 section, Cleaver in the C2 one.
Project X 2005 completely replaces the original one so make a backup if necessary.
's all :)