"B" cars are all big safe cars... currently you can get a 94-96 caprice for less than 2k from private parties and less from auctions. I mention these as they have all the more modern comfort (A/C,fuel injection,roomy interior etc..) and look pretty nice with a decent paint job. They come in economy 4.3 L99 200hp model and in 5.7 LT-1 260 hp model, either one will provide 20+MPG average.