Years ago I played this little game on my phone, and spent many hours playing it. I've since spent many hours playing it's sequel, which is just as addictive, possibly even more fun, and has even more options.
link to the game - free to play, requires flash.
This was my first time playing the original game on a PC instead of the phone, and there are a couple of differences in the controls, and the re-activeness to them that I had to get used to, but it's essentially the same.
I have to give thanks to 
As this is also my entry to the competition, here's the terrible photo of my current record
There's just so much light that a photo of the screen is really difficult to get a good image of. Pretty sure it says 4656 m for the distance. Not actually my record shown below.
Much clearer numbers in a screenshot. Records shown: Arctic: 1597 m. Highway: 4688
Now, I've played a reasonable number of runs to do this, having gathered enough coins in the original map to fully upgrade my first car (Cabriolet), and then purchase each of the additional levels to get to the Highway (fourth level), and then used the Cabriolet to earn the coins to upgrade the Sportscar.
It's a ridiculously addictive game, especially for anyone that just wants to do a little bit better than last time. I restrict my play on the phone (of the sequel) to 'only when a chest needs opening' and 'only enough to refill the chest storage'. I could easily play quite a bit more of this simple and quick game, with the knowledge that any single run isn't going to take more than a few minutes, so it's easy to fill in time with, and easy to walk away from to do something time critical and come back to it afterwards.
Level selection also shows current record. Farm: 947 m, Desert: 780 m
More Levels - Cave: 782 m, Mars: 505 m, Moon 310 m
The moon level is amusing for the super low gravity, but it's also difficult to judge the angle the car needs to be on when the land disappears off the bottom of the screen. Good for flips though.
Airborne, but in control, part way through a run on the Arctic level
Cave is one of the levels that each car has an actual maximum possible, where the space between the roof and floor becomes too narrow for the vehicle to actually fit between them. The roof also makes is much more interesting/difficult, especially as you get further along and the ceiling gets closer.
What's that above us? better not crash into the ceiling!
I hope you all enjoy this, and sorry for all the lost productivity as you get addicted to the game
