Consumer Reports has a list of 16 fuel efficient used cars. To see the full list go to the Consumer Reports article. They have several cars under $10k and several for $10k to 20k.
A few cars on the list are:
- 1998 to 2002 Chevrolet Prizm gets 32 MPG and it starts at $2614 on Edmunds for the 1998. Its noteworthy that the Prizm is basically a rebranded Toyota Corolla.
- 2000 Honda Insight gets 51MPG and Edmunds lists resale at $7602. Keep in mind this is just a 2 seater.
- 2006 Mini Cooper base hatchback with 30MPG listed at $14,311 on Edmunds.
- 2003 Honda Civic Hybrid list with 37MPG at $15,378 on Edmunds