The ramps in this game are only based on your luck, if you want to make a ramp jump with a big difference of height good luck retrying until the game decides, oh is your car in the middle of the air but it's in a different position and you can't land? that's alright... Atleast the game gave you the chance to get the speed in air to land on the ramp.

Seriously, some parts of the game are highly retarded but mostly the races are pretty easy when you are not playing on a ramp based theme.