not bad at all,
but I have a little tip that helps a huge amount, if you tune 1:24 scale, grab a stock POS in 1:24 scale then grab a DubCity or Jada tuned one with lots of Tvs and big trunks, SUVs are the best, rip everything out of it and a little of cutting and glueing, you got a sweet fully tuned car for under a $30 total
1:18 are more expensive, I did a cayenne but I don't feel like uploading the pics unless people want to see it, I just that lazy