the concept behind it is to represent the "idea" of a car instead of representing a real car and i explored the use of a front view of a car using just a few elements and a few lines
i don't think is necessary to use a detailed design of a car because it will never represent all the cars you sell, and somebody may just come to you to buy the car represented in the logo and you may not have it
i drew this in a way that is still visible and understandable also at the smallest size, you can to zoom out with your browser (ctrl + scroll back with mouse) to see that the logo doesn't loose its meaning also at the smallest size
and the design is optimized to be used in any color and with any background, so you can try all kinds of colors when you have the logo and choose the best according to your needs, i just posted here a few example colors,
please let me know what you think about this design, and what can i do to emprove it