I would look for a used 2011 mustang with a 5.0 in it, maybe find one for a little more then you are looking to spend. Otherwise, the 99-02 ls1 cars are awsome for daily drivers and can easily be 11 or 10 second daily drivers with the right combo. I know you can find plenty of camero's and firebirds 99-02 in you price range, tastefully modded. TR's can be great daily drivers too. However, having someone that can work on it for you and knows what they are working on really helps. I drove one 100+ miles round trip a day, but had a couple good friends/technicians that had worked on Buicks for a long time on speed dial!