The fist thing I noticed about the Alpha Romeo P2, apart from its classical stance, was the way that the chassis rails follow the aerofoiled body while remaining flush with the outer skin, even as chassis bows up and over the rear axle.
I decided to include the original car's chassis design into my Cyclekart design. which may or may not be a wise decision for a first time builder. Not that I don't have any fabrication experience. My shed is full of half finished project that my family would love to take you for a tour of if you tell them I'm starting a new one.
The CKP2 will be construct of an original steel chassis which will hopefully be rigid enough to pass a torsion and beaming test (a 100+kg man jumping up and down). If strength needs to be added I will add some space frame elements hidden within the body.
The wheel at this stage will be 17-1.60 Chinese pit bike rims with 17-2.50 trail type tyres. I will upgrade these later if they don't cut the Mustard (or if they don't corner and run straight through someone's picnic lunch and accidently do cut the mustard).
The seat will be dropped slightly through the chassis rails and I have enough space between the chassis rails to achieve this.
At this stage I'm thinking a live rear axle driving both rear wheels with no diff, which is a a deviation from the original Alpha Romeo P2 but this is not set in concrete. (so only part Italian then??).
The body skins will be formed aluminium unless it gets too hard. In this case some sections may be fibreglass formed over a shaped foam form.
Anyway better get to work on it. I'll keep this page updated as I go.
Cheers