The ‘wuggeta-wuggeta’ soundtrack when cruising becomes a bass growl when pressed, and even the slightest caress of the throttle pedal ushers in more commotion.
It’s hilarious and also a bit unnerving, because the 429GT weighs roughly 1000lb (454kg) less than the donor car.
However, there is a flipside to the entertainment provided by 429 cubic inches of Detroit goodness, and this becomes apparent on encountering a corner.
It isn’t as though the Murena doesn’t handle, more that it isn’t particularly nimble, while the brakes (discs up front, drums at the rear) don’t inspire confidence.
Easy cruising is the Murena 429GT’s forte
The power-steering set-up isn’t exactly vague, but it isn’t much else, either. If anything, it feels heavier than expected at low speeds.
The nose washes out first, as you might imagine: it understeers appreciably.
Turn in and the weight transfer is palpable, but you have to be careful applying power again in case the tail starts flailing.
Given the close proximity of stone walls, hedgerows and suchlike on the island, it would probably take out a cottage or two before righting itself.
The Murena 429GT’s low-slung chairs
Without wishing to damn the Murena with faint praise, this was clearly a car intended for the autostrada or an arrow-straight desert road.
Where the car really scores is in its ease of use when being tickled along.
Road & Track complained in period about clunks and clonks, but that isn’t the case here.
There are no creaks, groans or shudders through the structure. It soaks up the bumps with a ride quality that’s better than that of most modern-day sports saloons.
The Murena 429GT’s speedometer reads to 180mph
You could call it cynicism, but past experience of small-volume exotica leads you to expect comedy ergonomics and the giddying aroma of Araldite. Yet there are no such terrors.
Nothing is a reach away, while the steering wheel doesn’t rest on your lap.
The instruments are easily legible – the speedometer reads to 180mph – and you can see out of it.
There is much to like about this big-boned curio.
After a few hours in its company, you can imagine traversing continents in a single bound – assuming the hefty fuel bills don’t deter you first.
Creators Charlie Schwendler and Joseph Vos realised their dream of a sporty wagon with the Murena 429GT
Once you have become attuned to its more unruly foibles, the Murena is usable in the real world.
Purists will rail against it having a low-tech V8 rather than a multi-cam V12, but it’s the sort of thing you could fix with a hammer.
It had no obvious rivals in the late 1960s and there’s nothing comparable now. The Murena isn’t perfect, or even close, but it is a hoot to drive.
Time and tide change all, but burning rubber always gets a laugh.
Images: Richard Dredge
Thanks to: Darren Cunningham and Steve Glynn of the Isle of Man Motor Museum
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Richard Heseltine
Richard Heseltine is a long-time contributor to Classic & Sports Car