British hardcore roadster is almost ready to make a return to market, this time with Volvo power

Zenos is back. I know it’s possible you don’t remember it from the first time, so, to recap, this two-seat lightweight roadster, the Zenos E10, was the brainchild of some engineers who had worked at Lotus and Caterham and was introduced to us in 2014.

It was deliberately built down to a price – £24,995 – because the founders thought there were too many sports cars that were designed to be perfect so ended up so expensive that they only had one customer: the company’s founder.

Owing to its price and being nice to drive, the E10 was reasonably popular (around 150 were made), but it was too cheap, and so in 2017 Zenos went into administration, from which its assets were acquired by AC Cars.

There they remain, and in the past year AC has started taking a Zenos resurrection seriously. 

The E10 you see here is the only working prototype, a test bed for a new powertrain. But AC thinks it will be customer-ready in the second quarter of next year, at a price that will let it wipe its feet. More on which later.

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DESIGN & STYLING

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Structurally, the E10 is mostly as before.

A passenger tub is made of a vast extruded-aluminium central section, with plastic and recycled carbonfiibre surrounding it.

The front suspension, double wishbones with pushrods, is mounted directly to that extrusion, so there's no front subframe.

Then there are body panels, which will get a minor restyling (notably the lights) and be made of carbon­fibre on the production car (AC now has a carbonfibre facility in West Sussex).

There’s currently an aluminium rear subframe (also with double wishbones), although this will probably be changed to steel.

Making the body from carbon­fibre means the car should tip the scales at less than 800kg. When we road tested an E10 in 2015, it was 900kg, so with carbon­fibre panels and no fuel, I can see how it would get there.

INTERIOR

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The engineers asked if I would overlook the tattiness of this workhorse, and I will.

There are plans to revamp the inside, with a new dashboard and display systems and perhaps carbonfibre door cards.

There will be new lighter seats too.

You step over the sill to get in. The driving position is great, the gearlever is high and the pedal spacing is wide. The steering and brakes are unassisted.

Visibility is good, except over the shoulder to the passenger side.

The E10 is 3.9m long and just under 1.9m wide. A windscreen was available as an option before and will be again, but today is a helmet-on experience. 

ENGINES & PERFORMANCE

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The E10 originally had a four-cylinder Ford engine with 200bhp. The new one has quite a lot more than that.

Ford no longer makes that particular unit, so AC has ‘done a Caterham’ and contacted Horse, the Renault-Geely joint venture that’s in the business of selling combustion engines to third parties. (I get the impression we will be hearing more and more about this knightly saviour of small sports car makers.)With a host of brands to choose from within Geely and Renault, AC alighted on a 2.0-litre four-cylinder turbo Volvo engine. The Swedish manufacturer has powered sports cars before (the Noble M600 being the most recent example), but to me this still feels something of a novelty.

Here it revs to 7200rpm, and with a charge-air cooler and its own ECU (part of an entirely new 'can bus' electronics and electrical system), it makes 380bhp and 376lb ft of torque. 

It drives through a six-speed manual gearbox to the rear wheels. The production car will have a limited-slip differential.

The clutch weighting, firm brake pedal feel and throttle response are all very well judged. The engine is docile at low revs. The gearshift needs a little tightening and will get it.

This engine is heavily turbocharged, so there is a little lag at low revs, but by 2500rpm it’s becoming explosive and it doesn’t let up thereafter. High up the rev range it’s exceptionally urgent.

I've driven the car both on the road and on circuit, and by 3000rpm all lag is gone and the Zenos is fairly flying. (Here's where I'd pick a screen, becuase aero lift is pulling at your crash helmet.)

It sounds as good as a modern turbocharged four is going to: not bad, with an occasional not-overly-antisocial pop here and there.

RIDE & HANDLING

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The suspension is running the same settings as a decade ago (when we liked it enough for 4.5 road test stars), but AC will look at those next, so it won't pay to dwell on them too much. This is a powertrain prototype, not a dynamic one.

That said, despite a change in powertrain with a lot more oomph, it still feels really well sorted.

On the road, the ride is pretty firm but body control is great, and it already steers terri­fically well. The turning circle is sensible too.

On a circuit, it's perhaps even better. There's a touch of understeer until the tyres gain some warmth but thereafter it grips really stronly, it has impressive turn-in and the control that had it firm on the road means it's incredibly well pinned down on track.

It isn't a car that makes loads of downforce, but in character it's more like an aero-ish track car than something like, say, a Caterham. It feels like it appreciates being driven smoothly, with heavy self-centering on the steering and great stability. Tyres warmed, it's really pleasant to lean up against its grip levels and feel the car just straigthen its line under its tremendous power.

The good thing is how coherent it all feels already. 

VERDICT

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This time around, the E10 will come at a price. There might be cheaper and less powerful versions later, but AC thinks this 380bhp E10 RZ will be £140,000 on the road.

Which seems like a lot, but so does everything else: the BAC Mono and Dallara Stradale cost more; you can spend £100,000 on an Ariel Atom if you try. 

A lot of perception will rest on the eventual fit and finish – something AC is typically extremely good at.

We will know more next spring.

 

Matt Prior

Matt Prior
Title: Editor-at-large

Matt is Autocar’s lead features writer and presenter, is the main face of Autocar’s YouTube channel, presents the My Week In Cars podcast and has written his weekly column, Tester’s Notes, since 2013.

Matt is an automotive engineer who has been writing and talking about cars since 1997. He joined Autocar in 2005 as deputy road test editor, prior to which he was road test editor and world rally editor for Channel 4’s automotive website, 4Car. 

Into all things engineering and automotive from any era, Matt is as comfortable regularly contributing to sibling titles Move Electric and Classic & Sports Car as he is writing for Autocar. He has a racing licence, and some malfunctioning classic cars and motorbikes.