I'm on it right now: My stats: 12 unlocked roads, 5 individually pimped cars, level 11 overall. You wanna do the time races, because all gold time goals are absolutely manageable. 12x5 = more than 50 medals. But there are cars that are more suitable and don't forget that there is a race mod you can choose over a drift mod for each of your cars. As you will earn money fast by breezing through the first time races you will also have more than enough money to even by a new car should it be necessary. The downsight is that time races won't give u drift points for other achievements as they are just races. Hope this insight helps.