Jake should buy a car from cargurus than truecar. The reason why is because cargurus gives you an in-depth description of what the car has to offer and let's you know what you might want in a car. With truecar, truecar only gives you the price and nothing more. If truecar was a drug dealer, it would probably say, "Hey, you want some weed? It'll cost you about a thousand dollars, but don't worry. This stuff will make you feel goooooood." just for you to figure out that it was laced with chemicals that could literally kill you.
So, Jake's best bet would be to buy a car from cargurus.