1) go to options on main menu and change driving style to simulation.
2) on options also change difficulty to easy.
3) select quick stage then special stage.
4) choose a track that suits you, i chose sweden
5) with the game set on easy you can just take it easy going round, i was in 2nd gear all the way until the finish line was in sight and moved up gears, as long as you take the corners slowly you should easily do this in 2nd gear if you are no good at using manual gears like me.
*NOTE: there is another achievement you can combine this with which is to change the tyres which are different to the track used, so for sweden instead of snow/ice tires change to gravel on the car configuration part on quick stage, it's between the car team and start options.
hope this helps, with the set up you should get 2 achievements for 90 points.
rally driver 50 points.
bring it on 40 points.
good luck.