You can go for the XL-5, I kept my Slash stock with it for a while, but the VXL with a 2-cell LiPo is very fast.
Unless you go for a 3-cell LiPo or higher, you will have no problem controlling the car.
Go brushless if you want, but it will be cheaper in the long run to get the VXL model and look for a used XL-5 ESC and buy a new Titan motor for ~$20.