Divide by zero error. It's under a car cover waiting for a top end rebuild. It still runs great on three cylinders, though.
Bestest ever was through Eastern Oregon in the middle of the night on the way to Bonneville. 34MPG at 45MPH.
I still have the stroker 1776 mileage motor, but it would cost more to install. That and BMW i3 wheels and tires might get 40MPG. I would choose the 427s, similar to a New Beetle Turbo wheel. Expensive, but not as economical as the XFi.
(Best mileage I ever got with the panel van with 1600cc was 30MPG at 55 with a fresh rebuild. It never saw 55 again. Cruise at 75, topped out at 85.)