My '94 MB E320 returns between 20 and 27mpg, and the '95 BMW R1100R between 40 and 50 mpg. I live just 6 miles form my office, but often travel to other sites during the day. Overall the car is easier, i.e. no helmet, boots, jacket, pants and gloves, but I'm beginning to give the cycle more consideration.
regards,
Mark