easy: take a thousand pictures of each photo with your cell phone, adding some variation, use as training data for a CNN, tweet result to @boredyannlecun for debugging, decide to take an uber instead of buying a car on ebay

You want https://scholar.google.com.au/scholar?hl=en&as_sdt=2005&scio... and anything referencing http://mmlab.ie.cuhk.edu.hk/datasets/comp_cars/CompCars.pdf

10 cent query on Mechanical Turk?