Lotus Elise, 2011
The Lotus Elise revolutionised the sportscar market 14 years ago when the small lightweight agile 2-seat mid engine sportscar was introduced. By ensuring that the Lotus Elise stuck rigidly to Lotus' core values of performance through light weight, the Lotus Elise was able to produce supercar performance with city car economy.
The body - an evolution
The body of the new 2011 Lotus Elise is an evolution of the iconic Elise design, retaining the character and style, while offering a more planted, purposeful stance and a pure, contemporary look that links it to the Evora. As with all Lotus product the design is an exciting blend of dramatic style and functional efficiency
The new Lotus Elise body has a fresh sculptured front, including a new bumper, front clam and access panel that combine to give the Lotus Elise a wider look with more road presence.
At the rear of the car the new engine has been encased by a distinctive "twin-spine" engine cover whilst lower down a more aggressive diffuser is tightly wrapped by an elegant new bumper design that now includes the rear licence plate.
New headlamp units with distinctively sculptured LED lighting guides (incorporating daytime running lamps and direction indicators) give a contemporary twist to this classic design. Elsewhere, the signature, Lotus "mouth" and familiar sculptured forms have been sensitively refined to give a crisper, more dynamic look. The repositioning of lamp functions has enabled the creation of broad clean surface between the fenders which combines with sleek corner intakes and prominent splitter detail to give a broader more planted stance.
The theme of purity is carried through to the cooling apertures that are efficiently finished with a new lightweight aluminium mesh that gives the car a classically sporting character.
The rear boot is now opened from the cockpit rather than via a separate key operation. The high quality feel of the Lotus Elise is continued throughout the car with the Lotus Elise graphic incorporated into the new side LED direction indicators, like those on the Evora.
The driving position, from the perfectly positioned pedals and steering wheel, to the comfortable and supportive seats with ProBax technology means that, like all Lotus cars, the driver becomes part of the car rather than being just a passenger.
The changes
The new 2011 Lotus Elise has a number of additional changes and improvements, with the installation of a new advanced 1.6 litre Valvematic engine meeting EURO 5 regulations. This new engine is 200cc smaller than the outgoing Lotus Elise S model and produces similar power (136 PS, 100 kW, 134 hp at 6800 rpm) with maximum torque of 160 Nm, 118 lbft at 4400 rpm, but offers a significant improvement to fuel economy of over 23%, to 6.14 litres / 100km (46 mpg) and a reduction in CO2 emission by more than 13%. This provides the new Lotus Elise with the lowest CO2 per performance for any gasoline high performance sportscar in the world. This high technology engine is mated to a new 6-speed manual gearbox, providing closer and more performance orientated ratios than the outgoing 5 speed box.
The 1.6 litre engine is controlled via the bespoke Lotus T6 engine management system. Cruise control is available on the Lotus Elise for the first time with the controls present on a stalk located to the left of the steering column.
New cast wheels have been designed specifically for the Lotus Elise and the new optional forged wheels weigh just 29.26 kg per set, 2.14 kg lighter than a set of lightweight cast versions. Both are available in silver or black colour.
The Engine
The Lotus Elise introduces the new 1598 cm3, 1ZR-FAE engine, provided by Toyota. The key to this engine's performance and efficiency is the Valvematic system (a variable valve lift mechanism), which is combined with the dual VVT-i (Variable Valve Timing-intelligent). The engine continuously controls intake valve opening/closing timing and the intake valve lift to vary the volume of the intake airflow, giving significant improvements in efficiency and fuel economy. This ensures optimal performance based on the engines operational condition, thus helping the Lotus Elise achieve both high fuel efficiency and high performance.
The maximum power output is achieved at near maximum revs (engine speed) of 6800 rpm and maximum torque (a respectable 160 Nm, 118 lb.ft) is reached at 4400 rpm. This gives a good combination of mid range pull but also encourages the driver to rev the engine to the maximum permitted engine speed of 7000 rpm (transient rev limit). Like all Lotus Elise sportscars, there are three shift up lights, on the binnacle cumulatively lighting when the driver is getting closer to the rev limiter and when all three are illuminated, they flash to indicate that the driver is almost on the rev limiter so time to change up a gear!
The height of the engine cover has been raised by 34mm to accommodate the taller 1ZR engine compared to the previous 1ZZ engine from the outgoing model due, in part, to the additional Valvematic technology included on the new engine. This has given Lotus engineers an opportunity to subtly redesign the rear engine cover to match the design theme from the front and rear of the car.
The Chassis
The Lotus Elise is built around the revolutionary and award winning extruded and bonded aluminium chassis, with a lightweight steel rear subframe. The chassis weighs 68 kg (150 lbs) and has a stiffness of 9,800 Nm per degree, giving a high level of control of the suspension. At the rear, and also acting as a rear energy absorbing crash structure, a lightweight steel subframe carries the engine and gearbox. At the front, the radiator and key ancillaries are mounted into a high tech composite energy absorbing crash structure that is both lightweight, compact and over three times more energy absorbing than the equivalent steel structure.
Ride and handling
The legendary Lotus ride and handling gives a superb high performance, sporty drive, combined with a compliant ride and progressive on limit handling, it makes the Lotus Elise a car that demands to be driven.
The entry level Lotus Elise weighs 876 kg, making it one of the lightest fully homologated sportscars in the world. This low weight translates into efficient performance with minimal environmental impact in terms of emissions and fuel consumption. The efficiency of the Lotus Elise structure means that the 136 PS (100 kW, 134 hp) delivers phenomenal performance.
Few cars can match the delicacy and accuracy of the steering, throttle and brakes of the Lotus Elise and all of these factors contribute to the excellent driving experience of the Lotus Elise.
Safety
The Lotus Elise has high performance AP Racing callipers at the front and Brembo callipers at the rear linked to 282 mm vented and cross-drilled cast iron discs to give excellent stopping power.
The Lotus Elise comes as standard with a track tuned ABS system that is designed to be unobtrusive under normal driving conditions. This system is designed to be used on track and has a high threshold, only intervening in emergencies.
The ABS system is linked to a lightweight pedal box with steel pedal arms and extruded aluminium pads. This unit also has an electronic (drive-by-wire) throttle for quick, smooth and more linear engine response.
