Patent application reveals compact dual-clutch transmission system
8 January 2010

Lotus has submitted a patent application for a lighter, simpler and more compact dual-clutch transmission system.

However, in its application Lotus Cars engineer James Turner states: "There is a need for a more compact design of transmission unit, with fewer parts".

See the Lotus patent application pictures

The gearbox shown in the application is an eight-speed unit, with seven forward gears and reverse.

The application is made by Lotus Cars rather than Lotus Engineering, but Lotus sources have told Autocar that the unit is in fact being developed by its Engineering arm.

As a result, it will be sold to customers. This explains why Lotus has made submissions for both front and rear-drive variants of the system.

The Lotus source confirmed that the company has no plans to use the gearbox in any Lotus cars.

"The gearbox design provides an efficient and compact solution for applications on a wide range of vehicle architectures," said a Lotus spokesman. "Lotus Engineering holds a number of patents and it is our business to bring them to market, often in collabortaion with partners."

Twitter - follow

Join the debate


15 January 2010

a shame they don't use it on the Evora. Could get them closer to the competition....

Add your comment

Log in or register to post comments

Find an Autocar car review

Driven this week

  • First Drive
    21 March 2018
    The new Vantage has been developed as a Porsche 911 beater, and our first taste on UK roads suggests it can live up to that bold claim
  • Nissan Leaf Tekna
    The is the new Nissan Leaf
    First Drive
    21 March 2018
    The new version of the world's best-selling electric car gains a bigger battery and more power. How does it compare to rivals such as the Volkswagen e-Golf?
  • Range Rover p400e
    First Drive
    20 March 2018
    The original luxury SUV is now available as a plug-in hybrid, promising lower emissions and the capacity for silent electric motoring
  • BMW i3s
    Car review
    20 March 2018
    Revised hatchback sets out its range-extended electric stall in a new, sportier tune
  • BMW X2
    This is the new BMW X2
    First Drive
    20 March 2018
    Doesn’t deliver many typical crossover selling points but looks perky, handles keenly and is well capable of winning over your latent cynic