A stylish, low-slung design might work well at the track (or as a non-running concept vehicle), but the reality of potholes and speed bumps and driveways make it a nightmare. Building something from scratch can be fun, but struggling to do simple maintenance such as tune-ups soon means the bike runs poorly or isn't ridden at all. Exotica often comes with a price.
Having been a former VW Beetle owner, I need to ensure adequate tool clearances and the ability to get to all areas of an engine without removing it. I guess I've learned from other designer's shortcomings or compromises. Having the controls in the right places, having instruments in useful locations, having storage for small items, having lights and signals: these are the basics of a practical vehicle. I can do better than just the basics: I want something functional and practical and still be fun to ride. Click on any sketch for a larger view.