I could go for 60 mph, but not less as my daily commute takes me on a 55 mph road that....yeah, people drive at 55-60 (heavily patrolled by cops that don't cut you much slack). Would need 50 miles to get to/from with some safety margin.... Couldn't care less about safety. I used to ride a motorcycle; anything is better than that. Price? Keep it under $10k. Mpg? Just about anything that would go with such a small, aerodynamic vehicle would work for me (ie, 60+).