I tried the GTA franchise on a PS2... and decided to sold the game and console immediately after that. That game is so against my principles it was just that violent. I guess we're all different.

Playing on a tablet? Well, I admitt having a light device, always on/available is something very confortable when you come back from work. At first I was playing mind/puzzle games. I tried CSR and Asphalt, but way too arcade for my tastes. RR3 is still very much arcade, but it's still enough of a challenge to be enticing. Even with its own set of rules. But really, get a money cheat or it is a nightmare to play.

Regarding my rank, well I'm still number one on the 2 tracks I mentioned. I had to reclaim track #2, took me a little over an hour to get a .3 second advantage over the .7 he had. Meaning I improved my best lap by 1 full second (out of 127). And I'm pretty sure I could improve by another second... but that would probably take 3 to 4 hours and that would not be fun anymore.
What is interesting is that I can now adapt quicker and quicker to new tracks/cars, getting in the top 20 at my 2nd to 5th clean lap. Training really does wonders. My fortes seem to be braking and using the maximum of the track width. For example, I gain one full second on the second best player at mount Panorama (bathurst circuit, Australia) at the last 2 curves braking. These are very highspeed, downhill braking. I guess it takes some time getting used to it. Also, it's easier when you do not risk your skin. I would never try a full brake at full speed and then climb the rumblestip at the apex...