Criticism on my GBC sprites?

[Iocus]

The Mini Cooper large sprite looks too scrunched up, make it wider, especially along the center part. The wheels also look really blobby, do try to define the shape better and clean it up.

Oh, the front part also does not seem to be at the correct angle, particularly the headlights. Overall, I think you should go find a reference at this angle, more or less, and touch it up.