Aston Martin Reveals Secrets Of Rapide E: Range Over 200 Miles

SEP 12 2018 BY MARK KANE 11

Aston Martin Rapide E takes shape for Q4 2019 launch.

Aston Martin re-confirmed the launch of its first all-electric car, which from now on will be called the Rapide E.

Market launch of a limited series of 155 units will start in the fourth quarter of 2019. Cars will be built in a dedicated facility at Aston Martin’s St. Athan site.

The main development partners for the project is Williams Advanced Engineering (WAE), Hyperbat Limited (a new joint venture company between Williams Advanced Engineering and Unipart Manufacturing Group that will supply batteries), Integral Powertrain for the electric motors and Xtrac for the transmission.

Aston Martin would like to achieve high performance in a broad window of battery state-of-charge and for a prolonged time so there will be no problem covering a full lap of long tracks like Nürburgring at speed.

Preliminary specs:

  • target range of more than 200 miles (320 km) under WLTP cycle
  • 65 kWh battery (5,600 lithium-ion cells – 18650 type)
  • rear-wheel drive with two motors and total system output of 610 PS and 950 Nm
  • 0-60 mph (nearly 100 km/h) in less than 4 seconds
  • 50-70 mph in 1.5 seconds
  • top speed of 155 mph (250 km/h)
  • 800 V system voltage with capability to charge at 100 kW or more

Aston Martin Rapide E – Wheel and Fender

More in press release:

“Working closely with Williams Advanced Engineering (WAE) as its development partner, Aston Martin has utilised the hugely successful leader in Electric Vehicle (EV) technology to kickstart a new era for Aston Martin’s powertrain technology and overcome the technical challenges associated with packaging the battery system and motors within the space available.

Throughout the development process, the engineering team have focused on achieving effective cooling of the batteries and motor to ensure consistent performance, while strict weight targets have been stringently observed using lightweight alloys and carbon composite materials.

Rapide E will be powered by an 800V battery electrical architecture with 65kWh installed capacity using over 5600 lithium ion 18650 format cylindrical cells. These are mounted in a bespoke battery pack where the original 6.0-litre V12, its gearbox and fuel tank were located. This battery system powers two rear mounted electric motors producing a combined target output of just over 610PS and a colossal 950Nm of torque.

Rapide E’s range target is over 200 miles under the Worldwide Harmonised Light Vehicle Test Procedure (WLTP), while the model is capable of charging at a rate of 1851,2 miles of range per hour using a typical 400V 50kW charger. However, the car’s 800V high-voltage battery system enables faster charging of 3101,2 miles of range per hour, using an 800V outlet delivering 100kW or higher. 

Being an Aston Martin, the Rapide E is being developed with a high-performance objective. Projected top speed for the Rapide E is 155mph, with a sub-4.0sec 0-60mph time and a 50-70mph time of just 1.5sec. It’s important to stress that these figures are not restricted to a narrow window only when the batteries are fully-charged. Instead the target is for maximum performance on-demand throughout majority of the battery state of charge window, as would be expected from a conventional internal combustion-engined car. This includes the ability to drive a full lap of the Nürburgring with absolutely no derating of the battery and the ability to cope with the daily demands of repeated hard acceleration and braking.

The car’s exterior and underbody has also been aerodynamically optimised and complemented with newly-designed aerodynamic wheels. Shod with Pirelli P Zero™, Rapide E’s bespoke tyres aim to deliver a lower rolling-resistance and reduced cavity noise, while still delivering superior dynamic capability. Rapide E aims to achieve higher levels of aerodynamic, frictional loss and cooling performance over the standard Rapide S.

It has also been an objective of the project to retain and enhance the feel, character and delivery of the V12-engined Rapide S. To this end, careful attention will be paid to the development and tuning of both the electric powertrain and the chassis, with particular focus applied to software integration. The rear-wheel drive Rapide E’s twin electric motors will drive through a Limited-Slip Differential, which combined with revised spring and damper rates ensures the pure handling characteristics for which the petrol-powered Rapide S is already renowned.

Though the Rapide E will be built in low volumes, it is being subjected to Aston Martin’s stringent and exhaustive testing protocols, with the dedicated WAE team working closely alongside Aston Martin personnel to ensure every aspect of the prototype test programme follows the marque’s established procedures. Uniquely, customers will be an extended part of the ongoing Rapide E programme, with their comments and driving experiences providing an invaluable stream of feedback that will help shape and improve future Aston Martin EVs.

In addition to WAE, the Rapide E programme enjoys the support of other technical partners including Hyperbat Limited – a new joint venture company between Williams Advanced Engineering and Unipart Manufacturing Group – as the battery manufacturer, Integral Powertrain for the electric motors, Xtrac for the transmission and the H1PERBAT project consortium with grant funding from the Advanced Propulsion Centre.

1Predicted figure

2WLTP figure”

Speaking of the Rapide E programme, Andy Palmer, CEO Aston Martin, commented:

“Environmental responsibility and sustainability is a global challenge faced by us all. As a career automotive engineer, I’m proud that the car industry is leading the way in finding long-term solutions and reducing harmful emissions. As Aston Martin’s CEO, I take particular satisfaction working with Williams Advanced Engineering and our other associated technology partners to bring Rapide E to reality. As our first all-electric production model, Rapide E will fast-track our knowledge and help us ensure the character and high-performance capabilities of our future EV models and enhance the unique qualities found in all Aston Martins as we know them today. Rapide E will also serve as a critical step on our path to re-launching Lagonda as the world’s first zero-emission luxury marque”.

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11 Comments on "Aston Martin Reveals Secrets Of Rapide E: Range Over 200 Miles"

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I wonder how this will compare to the next Roadster.. twice the price and half the specs?

They’re not even close to being in the same category. There’s more to Aston Martin than a couple of numbers in a brochure.

Uh, the “couple of numbers in a brochure” is a bad euphemism for actual specs of the cars which is what really matters.

I still consider this progress, just kind of underwhelming progress.

The specs make it sound obsolete before it is even launched. The only thing here that is good is the 800v system, which still only charges at 100kW and 50kW at 400v is awful as no one has 800v chargers yet.

Give them a rest. It’s a very limited production ICE conversion. What do you expect?…

Give them a chance. The more BEVs in the world, the better. Aston Martin is an incredibly low-volume manufacturer no matter what, and nothing they do will change the world in a big way, but the very fact that there is an all-electric Aston Martin lends even more legitimacy to the technology.

So yes the specs are kind of “baby steps” but you can bet they will improve over time.

Initial specs aren’t the entire story, either. It remains to be seen what battery degradation is going to be like for all of these other non-Tesla marques. We have seen Nissan Leaf look pretty horrible. I am not looking forward to seeing the deterioration of Taycan, i-Pace, EQC and so on. Those manufacturers still have dealer networks that rely on repairs and servicing. It’s in their interests to need new batteries.

2wd? really….

Looking forward to them outperforming the BMW i8 on the monthly sales score card, and crushing the i8 on all-electric range, style, and specs.

With their sense for style, I really wish they would make a $50k all-electric sports coupe. If they have gone to the trouble of building the Rapide-E, they may as well apply that to fix their horrible financial situation. Admittedly a smaller company, Aston Martin could do well to sell more product, otherwise it’s going to die off and just be a brand for sale.

I thought they were doing quite well financially. They’ve just sold 5% of ownership to Daimler which gives them access to Mercedes-Benz and Mercedes-AMG components and electrical architecture. They’re significantly expanding their product range, including SUV’s and a solid effort at EV’s, along with massively updating the DB and Vantage line and introducing a whole new Lagonda line. They’re also not far off a planned IPO. Considering AML is a very small, low volume, hand built luxury manufacturer I don’t think they’re doing too bad. They’ve never ever made a budget car, and as awesome as a $50k sports coupe would be, AML aren’t the right people to develop it.

Aston Martin have been losing a lot to debt. They sold a #530 million UKP bond offering to restructure their debt last year, and this year they are pursuing an IPO to deal with their debt. The Mercedes-AMG gets them access to ICE technology. Not seeing a future there. Who knows? Maybe they will release a top/glider better looking than the sad love-child between a toaster and a bicycle helmet that Mercedes-Benz released this week.

Interesting that the battery for this one is not designed by Rimac, yet also uses cylindrical cells…