Quantum H4 - A Larger Cappo?

[David Regan]

Launched in June 1997, the Quantum H4 is a unique two door 2+2 open top sports car equipped with a removable roof panel and drop down glass heated rear screen. It has two front seats and a rear bench type seat with room for two children.

Its design differs somewhat from earlier Quantum models in that it uses a powder coated steel chassis, which is enclosed by a fibreglass shell. The body styling is somewhat more rounded and "softer" than the Coupe and 2+2 models. All the various options of Ford engine and gearbox components bolt directly to the steel chassis. The bodyshell/chassis assembly is extremely strong and due to its construction provides excellent crash protection.

The Quantum H4 has been carefully designed to utilise as many parts as possible from just one donor vehicle - the Mk3/Mk3.5 Ford Fiesta, hence the choice of "standard" power plant can range from the smallest CVH through the Zetec and even the RS Turbo.

Vital Statistics

Chassis :
Purposed designed, tubular steel, 2-pack coated as standard. Integral to the shell - most parts are fully encased in GRP when the bodyshell and floorpan are sandwiched around it.

Bodyshell :
GRP in self pigmented gelcoat finish (paint also available). Fully surface polished. All panels fitted and aligned, including heated rear screen ready-mounted. Front and rear detachable bumpers.

Engine :
Popular options include:1400i 8v; 1600; 1600i 8v; 1600i 16v; 1600i turbo; 1800i 16v. All unleaded as standard (others available, including 1800 diesel).

Transmission :
Front wheel drive. 5 speed manual. CTX automatic available with some engine options.

Front Suspension :
Fully independant. MacPherson struts with coil springs over shock absorbers.

Rear Suspension :
H-beam solid rear axle with trailing arms. Coil springs and shock absorbers.

Steering :
Unassisted rack & pinion, or power assisted.
Dimensions :

Length - 3.99m
Width - 1.63m

Luggage :
Boot - 300 litres (roof panel stowed).
Behind front seats - 160 litres (min).

Donor :
Any model of MK3 Fiesta (1989 - 1995), e.g. XR2i, RS1800, etc - see engine options above.


http://www.quantumowners.com/cars/h4.shtml

[Lisa Balsom]

It's one of those moments again folks.

Dave, get another Cappo!!!!


It's pointless fighting it.

[David Regan]

Awww, babes!!!!!

[Karl Taylor]

How can anything front wheel drive be a larger Cappo??????

[Dick Winchester]

It's ugly and it's FWD..

Some of Quantum's other cars are better.

[David Regan]

True. It's a shame about the FWD...

[Danny Skehan]

Came across this little car, which was produced by Toyota in the 1960s – certainly the designers of the Cappuccino must have studied some of the features of this unique car. Look at the roof panels and the general lines. They even produced a gas turbine engine!

http://grandjdm.com/2007/09/26/sports-8 ... ing-roots/

http://www.rstreet.us/yotahachi/

http://www.motorbase.com/vehicle/by-id/1564745992/

http://jalopnik.com/cars/retro/japans-a ... 119154.php


All in all a very smart looking little car for it’s time.

[Adrian Furniss]

Danny, you're right. It's very Cappo like.

Pity about the Land Crab headlights but the rest of it is fine.