Check it out:
http://www.zooommm.com/
These are the Specs just for "Ratzilla" the Supercharged Twin V8 Fiat Topolino...
Engines - two 500 ci big block Chevy's

6:71 superchargers (10% overdrive)

4 port nostalgia injectors
Roller cams with gear drives
Shaft roller rockers
Forged 4130 cranks
Forged aluminum rods
Forged pistons (8.4:1)
Nostalgia magnetos
Engines are coupled at cranks by sprockets and duplex chain
Single fuel pump on front motor feeds fuel to both motors
Fuel tank - 13 gallon (50 litres)
Clutch - 2 disc slider (full centrifugal) with creeper
Transmission - none (direct drive) reverser only
Diff - nodular iron 9" third member with 3.70 gears
Rear tyres - 31 x 12 x 16 on genuine nostalgia magnesium wheels
Front tyres - 24 x 5.5 on genuine nostalgia 12 spoke magnesium wheels
Chassis - chrome moly tubing - 175" wheel base
Suspension - torsion bar front, solid rear
Full weight - 2500 lbs (1150 kg)
Brakes - rear wheels only
Parachutes - twin 8 ft cross form chutes
Time to build - over 3 years in the Metal Mickey Motorsport workshop on Queenslands Gold Coast.
Cost to build - over $150,000.

Construction and testing finished - fully operational