OK here is my review.
I have Tested Carma Free on Android, but I think the problems are also corresponding to full version.
First problem was installer which need about 90MB of space in phone memory, since my phone is cheap one it have very small memory amount dedicated for user. So I cleaned everything to install this, and it installed after few trials (till passed out of space message), but the apk take about 10 MB, where other part is on SD Card after installation (then with CF installed, I have installed Open Arena which require more than 400MB without problems). So why it need so much memory for install? Also I think the movies and music should be moved to data block (obb) instead of put it inside apk, since apk can't be moved to SD Card and took too much space in internal memory.
Now a bit of sugar...
The game look nice (maybe too nice, but OK, anyway much better than many other Android games).
Controls are very good, I tested also C1 under various versions of DOSBox, so the Android port work fast and much more comfortable opposite to them.
First look - the cars windows are shadowed, but there is no environment reflection as it is in original version.
The water is not transparent which can be transparent in original version (only interplay version have necessary files included, but user can add them from SP demo to see transparency in C1, so there was no transparency only because of bug...).
The cockpits are missing, the view from car on map, net play and for this version there is no part shop.
But the basic and stupidest thing is game rule which add points to player when opponents hit player car.
We can set the car as first on start, then just watch as it won the race without any interaction...
Also to beat all pedestrians we need to avoid opponents which wasting on us ending game too quickly.
BTW: In C2 is a bit stupid too, but it's playable, when we hit opponent and it crash somewhere else we took the points.
But here... sorry this *must be* fixed...
Other things: Where is the boring mode, where are the zombies? Where is Splat Pack? C2?
About zombies - you probably think the time has changed and now we (you) don't need zombies, but I think you have missed that this was cool to have the different versions, and this was one of the thing that make Carmageddon so interesting.