ahem... i have build a few specials in my day and as for the why,because i could and becouse i liked a challenge
i tried to fit a NSU car engine in a featherbed , even machined a sump for it a la GILERA , but never sorted it and it ended up in a racing outfit.
Now even after more than 10 years we haven't sorted it out fully , drysumping etc , so i would not slag those (ugly)contraptions of , because they 're .......different .
But quite a few are nice .In holland there used to be a competition called KONING ZELFBOUW , (king build it yourself ) and some amezing creations came out of that.
and i remember seeing HALF of a Hillman Imp in a BSA frame and half of an NSU builmd into a racebike , and those were lookers