Honda CR-Z Mugen

Text: James Foxall / Photos: Matt Richardson

June 2011

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The Honda CR-Z sports hybrid has never had the pace to live up to the
promise of its looks. Realising this, Honda UK has commissioned its
British-based tuner, Mugen Euro, to make a one-off special as an example
 of what a high-performance CR-Z could be like.

VIDEO: We pit the Mugen CR-Z against the Mugen Ariel Atom:

Instead of junking the hybrid system, Mugen has boosted the existing 1.5-litre
petrol engine with a centrifugal supercharger. This sees pulling power
continue to increase as the revs rise, and promises, says Honda, Civic
Type R-rivalling speed.

Mugen has also tinkered with the CR-Z’s looks, adding new spoilers, a rear
diffuser and three vertical LEDs flanking the front number plate. A
black carbon fibre bonnet contrasts with the metallic orange paint. The
doors, too, are carbon fibre, and there are 17-inch lightweight forged
alloys. This all slices 50kg from the regular CR-Z’s weight.

Inside, gauges showing oil and water temperature, plus oil pressure, emphasise
the sporty appeal. The rear seats have been removed and the fronts
replaced by lightweight Recaros, although these aren’t adjustable or
very supportive, and feel quite narrow around the shoulders.

Press the red starter button and the exhaust instantly sounds more purposeful
than the regular car’s. At 4,000rpm, the supercharger really gets to
work, and acceleration is accompanied by an almighty whoosh – but the
limited aural appeal at a slower pace means the CR-Z Mugen doesn’t feel
as fast from 0-62mph as Honda claims.

The suspension has been revised, too. Adjustable dampers give a firmer,
flatter feel through corners. The ride never jars, but the front tyres
still squirm under acceleration, prompting the traction control light to
 wink in first and second gears. And even though a limited-slip diff
gives strong front bite into corners, it’s not hard to push the nose
wide.

We left the Sport button engaged for most of our time at the wheel, keeping the
 engine at its most responsive. Normal mode tames the reactions, while
Eco dulls performance to regular CR-Z levels. Although Mugen says its
modifications will cut economy to about 35mpg, we averaged nearly 40mpg –
 better than the standard car, despite hard driving.

Honda believes this one-off cost £150,000 to build. However, with the changes
inside and out, plus the exhaust, suspension and rims coming in at
around £12,000, most of that went on developing the engine.
And should the car make production, we estimate that it will cost
£40,000-£50,000 –  which is more than twice as much as a regular CR-Z.