I used the Subaru Impreza 22B for all of my rallying and so far, it hasn't disappointed me one bit. Slow enough so you're always in control, but fast enough to make races interesting. I'm sure there are other cars too, but the 22B does fine for me 👍.
As a general tip though, driving on dirt is very different from driving on asphalt. Grip levels are lower, so sliding is faster than gripping. I'm not terribly good at rallying either, but one thing that I do is try to take corners from the inside (in other words, in-in-out rather than out-in-out). Also, short shift to a higher gear if you find yourself spinning those wheels.