Design Rationale: 75+ MPG

Originally my goal was 100+ MPG since my daily commute is about 110 miles round trip. The HyperRocket achieve that and more. However, since its seating is tandem and I plan to be side-by-side, and because I am planning to build a more substantial frame to improve crash protection, my goal has been adjusted to 75+ MPG. Currently I plan to burn gasoline. A conversion to propane is a real possibility also.