I haven't done much car stuff, but hope to get into it more.
First point. Angles. You need to use them wisely on vehicles (and any photography)
#3 is blurry, and the angle is poor.
#2 I think you could have use more angle to your advantage.
You have a white car, pick backgrounds that suit your car. I think a lot more colourful backgrounds with dark pavement with greens or blues would have helped a lot. You want contrast. The car will stand out then. Find a shoreline, grass or some sort of field, an old street with trees overlapping it, etc. Crank the saturation.
Don't be afraid to get in close with angles. Use your widest angle and get some funky fender shots, wheels, lights, exhaust and rear tire treads. Turn the wheels of your car. The 1st shot for example could benefit from turned wheels. Show off the Brembo brakes, etc.
Finally, pick a better day for light. Over hanging trees, light overcast, building reflections, all these help make the car look more shiney than it maybe is.
Hopefully that helps.