I’m thinking about buying a 2004 Prius, the hybrid vehicle powered by a gasoline engine and electric motor. It’s priced around $20k with size similar to a Camery, actually, slightly smaller . According to some reviews, it passes better than similar car, but takes longer to go from 0 to 60 mph. It starts with the electric motor up to 20 mph then the gasoline engine kicks in. The battery is recharged while you are driving, so there’s no need to recharge it manully. When you brake, the electric motor works as a generator that recharges the battery to get better fuel efficiency.
It runs at 2002 EPA estimated 52 city/45 highway/48 combined mpg and you can get $2k tax deduction from IRS.