The Piaggio MP3 has set me thinking about a sportsbike type quad with R1/Gixxer/Blade type performance.
The MP3 has a pair of front wheels close together that tilt for corners. Imagine these fitted front and back. The distance between wheels on the MP3 means it is still classed (and taxed) as a two wheeler.
Could be an interesting new niche.
Piaggio MP3, but imagine a 180bhp four wheeled hyper quad version…