Covini
C6W Spider
The
original idea for the Covini C6W was conceived by Ferruccio Covini in '74 and
made provision for 10 inches front wheels because there where no low profile
tyres at the time. The project was ditched in favour of the Soleado prototype,
deemed more important, and lay dormant until the 80s when hydro-pneumatic
suspension for the four front wheels where devised to optimise weight
distribution under various loading conditions. High development costs and other
contingencies forced the project to be delayed again. Its use of new ABS
technologies and airbags in the 90s pointed in the direction of new research
into active and passive safety. This aspect encouraged backing from companies
for its development.
Why
six wheels? In
case of a front tyre deflation, the vehicle control is guaranteed by the other
wheel next to it. Four
front disc brakes, although a smaller single area, ensure a greater braking
surface; this means less overheating and a higher brake effort. Low
risk of aquaplaning, due to the two foremost wheels, which wipe the water for
the ones behind them, ensuring a better road holding. The comfort
is a consequence of more evenly distributed reaction forces in the supension:
the reaction in case of a pot hole is divided between the four front wheels and
the shudder in the chassis is limited. The uses of six wheels reduced
unsprung weight in the wheels improves the grip. Directional stability is
improved: a change of angle due to slack in the steering mechanism (in
stuctures like silentblocks) is compensated by the second set of wheels.
Technical
Specifications
- ENGINE: rear, V8, 32 valve naturally aspirated, Bosch-motronic injection
- CAPACITY: 4200 cc
- MAX POWER: 380 PS at 6400 rpm
- MAX TORQUE: 450 Nm at 2700 rpm
- TRANSMISSION: rear wheel drive transaxle
- GEARBOX: manual 6-speed
- CHASSIS: steel tubular with carbon fibre reinforcements and structural parts
- SUSPENSION: independent front and rear wishbones
- WHEELS AND TYRES: 16" front wheels (215/45-16); 20" rear with 345/25-20
- BRAKES: front and rear vented Brembo discs
- BODYWORK: glass fibre and carbon fibre
- DIMENSIONS: 4180 x 1990 x 1080 mm; wheelbase 2230 - 2750 mm
- TOP SPEED: 300 km/h