This was meant to be a toon right?

Not a bad attempt - the side and windows are actually very good

The front however, is a bit too much of one tone - it needs more variation in the hue and brightness of the colour, but other than that I'd say it's not a bad attempt. Looks a lot better than the base too
Only thing i would say is that a black line going all the way round the entire car would add to the tooney/ vectory feel - so you may want to add that in

Keep it up though