It’s been ten years since the Tesla Roadster was first released and now the majority of the big car companies have started to build or have announced they will be building their very own electric cars. The latest being Aston Martin who have announced that its second major UK manufacturing facility will become the brand’s centre for electrification and the production home of the Lagonda brand, the world’s first zero-emission luxury marque.
Aston’s EV is called Rapide E and it will be built in St Athan, Wales when production commences in 2019. The luxury British marque has today confirmed a raft of technical details for the strictly limited 155-unit special edition.
The Aston Martin facility at St Athan
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 64kWh 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 185 miles of range per hour using a typical 400V 50kW charger. However, the car’s 800V high-voltage battery system enables faster charging of 310 miles of range per hour, using an 800V outlet delivering 100kW or higher.
A sneak peak at the Rapide E
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 low rolling-resistance tyres featuring noise-cancelling foam, Rapide E aims to achieve higher levels of aerodynamic, frictional losses 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 Technologies for electric motors and Xtrac for the transmission.
The Rapide E – Powertrain Diagram
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”.
The DBS Superleggera
Aston Martin Lagonda is a luxury automotive group focused on the creation of exclusive cars and SUVs. The iconic Aston Martin brand fuses the latest technology, exceptional hand craftsmanship and timeless design to produce models including the DB11, Rapide S, DBS Superleggera, Vantage and Vanquish Zagato. The Lagonda brand will relaunch in 2021 as the world’s first luxury electric vehicle company.
Aston Martin St Athan is now in the third and final phase of becoming a state-of-the-art vehicle assembly facility, in which production of the company’s first sports utility vehicle (SUV) is due to begin in late 2019. The project includes the conversion of three super hangars on the former Ministry of Defence site. The plant is a demonstration of Aston Martin’s continued commitment to the UK and an additional investment of £50million to make St Athan the home of electrification for the marque shows a clear vision on the future of Aston Martin in the UK. The new plant will bring up to 750 high skilled jobs to South Wales over the coming years, with more than 150 already recruited.
Aston Martin is accepting expressions of interest via its global dealership network, with pricing available on application. Customer deliveries are set for Q4 2019. For more information about the Aston Martin range, please visit your preferred Aston Martin dealer.
Photographs by Aston Martin Lagonda.