A few days ago I was talking with a friend about bikes vs cars and which are faster or more fun at a track. The conversation quickly turned to how to find equivalent models of cars and bikes. (i.e. Comparing a Ferrari 430 to a Harley Ultra doesn't seem right.) The original question doesn't bother me much. But the "car equivalent" one does. Since I don't have a job these sorts of questions can consume entire days for me. Here's my list Cruiser. Equivalent: Non-traditional "style" cars. (I'm not sure how to describe it.) Things like a Plymouth Prowler or a Chevy HHR. Where style is key but the performance doesn't match the promise. Tourer (Gold Wing, Harley Ultra). Equivalent: Full size sedan like a Cadillac or Lincoln. This one seems obvious to me. These are machines designed to suck up miles. Where range and passenger comfort are top priorities. Performance and style aren't. Sport-tourer. Equivalent: GT cars like Corvette or Mustang or BMW M3. They are reasonably comfortable for long distances and they're fun to thrash through the corners. Sportbike. Equivalent: nothing. At least nothing mass-produced. For all intents and purposes everything (comfort, range, noise) is sacrificed on the alter of performance. Handling and power are paramount. The last two categories are where my friend and I differed. He wanted to equate a Corvette Z06 or a Ferrari with a sportbike. And to me that's not right, the Corvette isn't as performance-centric. The only car I can think of equating to a sportbike would be an Ariel Atom. I'm curious what other people think.