Lexus has confirmed production of an ultra-exclusive supercar. Lexus is to produce just 500 example of the luxurious handmade LFA.
A ‘clean sheet’ in design makes the LFA unique in Lexus manufacture. Developed by a small team of engineers, the LFA uses the very best materials and the latest technology. Constructed using advanced carbon fibre technology, the rear-wheel drive LFA is powered by a bespoke, high-revving 552bhp 4.8-litre naturally aspirated V10 engine, matched to a rear-mounted six-speed sequential automatic transmission, giving 200mph-plus performance.
In the words of Chief Engineer Haruhiko Tanahashi: “The LFA is a thoroughbred supercar, a machine engineered to achieve a single goal – to deliver a supreme driving experience. Over the past decade we have pushed every boundary in pursuit of this goal and I believe we have created the most driver-orientated car we possibly could.”
Keeping the car’s weight to an absolute minimum was one of the defining elements in the development of the LFA and this led to the decision to switch from using aluminium for the car’s construction to advanced Carbon Fibre Reinforced Plastic (CFRP) for the chassis and bodywork.
Moreover, Lexus decided the CFRP structure should be built in-house rather than by a third-party supplier. In doing so, it drew on Toyota Motor Corporation’s heritage in textile weaving technology to push the boundaries of its technical abilities, developing new carbon fibre looms and a laser system for monitoring the integrity of the material.
At four times the strength of aluminium, CFRP gives the LFA an exceptionally stiff and strong structure, and also delivers major weight advantages, saving around 100kg on an equivalent aluminium body. CFRP accounts for 65 per cent of the body-in-white, with aluminium alloy used for the remaining 35 per cent.
Unlike the few other vehicles on the market that use CFRP construction, the LFA uses the same advanced resin technology favoured by cutting-edge aerospace programmes for its unmatched weight and strength properties.
The heart of the LFA is a bespoke, naturally aspirated V10 engine that sets new standards for compact dimensions, lightweight architecture and scintillating performance. From the outset it was determined the engine should have a 4,805cc capacity, develop 552bhp and rev to a wailing 9,000rpm red line. A 72-degree angle between the cylinder heads is ideal for achieving balance in the engine for exceptionally smooth running, while providing individual, electronically controlled throttle bodies for each cylinder gives excellent throttle response.
Using a dry sump lubrication system allows the block to be positioned deep in the engine bay, lowering the car’s centre of gravity and moment of inertia, and enabling the engine to handle sustained, high-speed cornering.
The V10 produces 480Nm of torque at 6,800rpm, 90 per cent of which is available from 3,700rpm all the way to the 9,000rpm red line, thanks to Dual VVT-i technology, equal length exhaust manifolds and high-volume, 12-hole fuel injectors. This gives searing in-hear acceleration at all engine speeds and in any gear: nought to 62mph takes just 3.7 seconds and maximum speed is 202mph.
With a kerb weight of 1,480kg, the LFA has a power to weight ratio of 373bhp per tonne, while specific output of 115bhp per litre is among the highest of any current supercar, aided by a high, 12:1 compression ratio, low friction internals and optimised intake and exhaust flow.
In spite of its potency, the V10 is an object lesson in compact and lightweight packaging, being about the same size as a regular V8 engine and weighing about as much as conventional V6. It is also as reliable and refined as any other Lexus power plan and exceeds Euro 5 emissions standards.
The engine was developed in conoctction with Yamaha through the established collaborative partnership between Toyota Motor Corporation and the Japanese specialist engineering company.
The formidable performance of the V10 is managed through an equally advanced transmission, a purpose-designed six-speed Automated Sequential Gearbox (ASG) that drives the rear wheels via a limited slip differential. To help achieve the optimum 48:52 front-to-rear weight distribution, it is contained in a transaxle mounted over the rear axle.
The ASG is operated by paddle shifts mounted on the steering column and is engineered for exceptionally fast shifts: an upshift can be effected in just 0.2 seconds.
The system has four driving modes: Auto, Sport, Normal and Wet, activated by a selector dial on the dashboard. Each mode has a specific gearshift programme, and engine and brake control logic systems to let the driver tailor the car’s performance to suit driving conditions.
The track-tuned suspension is the result of intensive development work carried out by Lexus at the Nürburgring’s Nordschleife circuit to give the best possible balance between control and comfort.
The bespoke wishbone front/multilink rear design makes extensive use of aluminium alloy for high strength and low weight, and the aluminium monotube dampers are the same as those Lexus used for its LFA race car in the Nurburgring 24-hour race.
The 20-inch forged aluminium BBS wheels are shod with asymmetric Bridgestone tyres: 265/35ZR20 at the front and 305/20ZR20 at the rear.
The LFA boasts class-leading aerodynamics to achieve drivetrain cooling and superb high-speed handling and stability. Extensive wind tunnel testing helped produce a wind-cheating profile with a drag coefficient of 0.31, a remarkable achievement given the degree of downforce the car creates at high speed.
Airflow is precisely controlled over, under and around the car. A carbon fibre rear diffuser and flat underbody generate significant downforce, with an active rear wing, complete with a gurney flap on the leading edge, boosting the level further still.
The LFA programme was originally launched in 2000 as a straightforward R&D project, but gained impetus with the appointment of Haruhiko Tanahashi to lead a dedicated team of engineers, committed to a bespoke Lexus development programme. The first LFA prototype was completed in 2003 and a design study made its public debut at the 2005 Detroit motor show. In 2008 and 2009 the LFA was entered in the Nurburgring 24-hour race, the intention being to push the car hard under testing conditions prior to its official launch as a production-ready model at the 2009 Tokyo motor show.
The LFA will be hand-assembled at the Motomachi plant in Toyota City. Only 500 examples will be built, at a maximum rate of 20 per month to ensure the finest build quality and attention to detail. Each V10 engine will be assembled by a single engineer, and will bear his signature as testament to each LFA’s bespoke status.
The UK launch price for the LFA is €368,000 (approximately £336,000). Owners can choose from an extensive range of options to personalise their car, including 30 different paint finishes. Certain items of standard equipment can also be removed, such as the audio system, to reduce the car’s weight.
