Cool subjects! (I mean this one and your other F1 car)
I've got one tip which will lift these to an even higher level. Try and get rid of the outlined areas in the tires and wheels. Let the shadows form the hard edges without delineating them with black lines. Maybe you can soften the lines around the upper edges of the white body parts too? I'm glad you got the side pods painted in there nice without the use of a line to separate them. that good work there!