Motorcycles I am unlikely to purchase

I like motorcycles. A lot. Postie bikes, superbikes, Italian exotica, UJMs, Hardly Drivables - I like 'em all and can see situations in which I would like to own one. Some motorcycles I just bring myself to desire, however. Such as this:
Looks OK at first glance, doesn't it? Fun little thing to ride, front wheel up, etc. The trouble is that it's 'powered' by this:








Which is kind of unfortunate, in that a lot of the joy of riding a motorcycle is aural. Even plain Jane UJMs such as my motorcycle sound like sex when you get enthusiastic on the twisty side of the handlebars and the induction roar starts to emanate from the airbox. The Lovely Lady has even commented on the sound that reaches her in the Little Red Car when she followed me into the Twisties. As compared to this thing, which would sound like a tram.
This thing looks the goods, too, huh? Once again appearances are being deceptive. Although it looks like something Loris Capirossi uses to duck down to the shop to buy a carton of milk, it is in fact powered by this:




That's right folks, no MotoGP inspired pneumatic valved 17,000 rpm, 250bhp per litre screamer, it's a diesel. D. I. E. S. E. L. As well as aural, one of the bonus, no-extra-cost joys of motorcycling is tactile. From the angry buzz of an Aprilia RS250 at three billion rpm on a windy road to the uneven lope of a H-D poking down a freeway to the once-a-powerpole thump of an old pommy single, motorcycle engines each have a unique feel to them. I think that this may be just a little too unique for moi. At least now H-Ds may loose the epithet 'two-wheeled tractor'.
This is just wrong, so I'm going to work.