I just bought a 2014 Expedition with 26k on the clock. It’s the last V8 model they make. Still getting about 13.5 mpg, same as my 2004 V8 Expedition got.
http://www.ibtimes.co.uk/bac-mono-this-liverpool-made-single-seater-supercar-ultimate-luxury-gadget-1544423
A bit slower at 0-60 in 2.8 seconds but not bad for four cylinders.