This content requires cookies, please click 'Allow Cookies' at the bottom of the screen.


Wellingborough,UK –

At the heart of RML’s new Short Wheelbase, which will make its first appearance this later this year, is one of the all-time great high-performance engines: the 5474cc, naturally aspirated, 65-degree Ferrari V12. Producing 485PS at 7,000rpm and 568Nm of torque at 5,000rpm, the unit is an engineering masterpiece, and one that will power the car from 0-60mph in 4.1 seconds and to over 185mph*.

However, integration of the powertrain called upon all of RML’s vast experience developing performance powertrains from scratch for OEMs. Adnan Rahman, Powertrain Engineer for the Short Wheelbase programme summed up some of the challenges.

“It was important for us to look at the V12’s application in the 550 model so that we could benchmark its intake and cooling characteristics accurately. We then worked closely with the car’s head of design, Jonathan Bowen, to make sure that ducting air into the engine not only met our requirements, but also didn’t make any aesthetic compromises.

“The difference in dimensions between the 550 (the platform from which underpins RML’s car) and the Short Wheelbase also meant that inlet, cooling and exhaust systems
had to be designed from scratch so they would integrate with a more compact body, but still perform effectively in even more demanding driving environments. Imagine, for example, making full use of the car’s performance and then hitting a traffic jam in downtown Dubai in 50-degree heat – well, that’s what it’s designed to cope with.”

Adnan’s colleague, Matt Packham, was tasked with developing the Short Wheelbase’s oil and cooling systems, which again are bespoke. “The design and layout of the radiators and cooling system were a priority from the start, since where they sit in the engine bay determines how most other components are positioned. We started by seeing how effective the 550’s cooling pack was by testing it in a climatic wind tunnel chamber, and with that data, developed our own cooling test rig specifically for the Short Wheelbase.”

Matt’s team then re-designed the five radiators for the new application (water and engine oil radiators, gearbox and PAS coolers, and an HVAC condenser), as well as the
oil tank for the engine’s dry-sump system, which could no longer be
accommodated at the front of the engine bay and had to be relocated at the side of the engine. “We also wanted the under-bonnet area to have a more cohesive design,” said Matt. “So components like the oil tank and washer reservoir are
positioned symmetrically and each has a neat carbon cover.”

Of course, a classic engine like the Ferrari V12 should not only be seen, but heard in all its glory, and the RML team had to develop an all-new exhaust system from the manifold to its quad tail-pipes (apart from the catalyst) to achieve this. Acoustically sonorous, but meeting all current noise regulations, the system also had to be free-flowing enough not to impede the engine’s original performance.

And that performance will be consistent from car to car, thanks to RML’s Powertrain Assurance Programme. Each V12 unit is first dynamometer-tested to establish its
power credentials. It is then stripped and follows a strict measurement process to gauge cylinder bore wear and to check that all internal components fall within the manufacturer’s original scope of tolerance. Only when the unit is
brought back to its original specification does it go through a final validation on the dyno before being installed in the Short Wheelbase.

But while RML’s new classic GT is bespoke in almost every way, use of OEM service parts mean that it can be maintained by any reputable specialist around the world, which given that around 70 per cent of cars will be exported, will be important to buyers. For those, though, who would rather have a more personal touch, RML offers its own ‘flying spanner’ service, where its technicians will carry out maintenance as required wherever the car is situated.

For more information about the RML Short Wheelbase, including previous press material,
please go to:

*Estimated figures

Press contact:

Simon Hucknall

+44 7860 151953

Notes to Editors

RML Group Ltd

RML is one of the world’s leading high performance automotive engineering
companies. We undertake whole-vehicle design, build and development projects
for motorsport and road car applications.

We push the boundaries with
exceptional and cost-effective solutions for automotive OEM’s. Defence and
Aerospace clients, whether this is for a one off powertrain or a complete
continuation programme, RML Group has the capabilities and experience to make
your programme a success.

One of our fastest-growing
specialisations is EV technology for road and race applications, made
possible by our state of the art energy storage design and manufacturing
facility, design engineering, software and simulation services.

In Motorsport RML’s experience extends
to Touring Car, GT, Sports Prototype and off-road programmes in major
motorsport series for global automotive brands worldwide, RML has won
multiple World-Championships for its partners and has a winning pedigree in
every series in which it has competed. RML applies this nimble, innovative
and winning mind set to developing high performance road car derivatives and
advanced automotive engineering solutions for OEMs.

RML Group:

For further information, please contact:

Simon Holloway

RML Group Ltd

T: (0) 1933 402440

Copyright © 2013 RML
Group All rights reserved.

RML Group Ltd

6-10 Whittle Close, Wellingborough, Northants, NN8 6TY

Tel: +44 (0)1933 402440