Lotus installs its most powerful ever 4cyl in the Emira
V6 gets playmate in the form of a Merc-derived 2.0-litre turbo with 360bhp
We were promised
a cheaper, four-cylinder version of the
Lotus Emira last year, and at last, here it is: the most powerful four-pot Lotus ever built. Gets your attention immediately, doesn’t it?
Based on Mercedes’ record-breaking, all-aluminium 2.0-litre turbo, Lotus has taken the liberty of making some adjustments before bolting it into the Emira. We’re talking new intake and exhaust systems, bespoke calibration and new transmission shift-mapping, among other things.
It’s mated to an eight-speed DCT (a first for Lotus) also borrowed from Merc, the thinking being that drivers can take manual control when the road ahead gets twisty and revert to auto mode the rest of the time.
The engine’s a twin-scroll turbo, meaning the turbo housing is split into ducts matching those in the exhaust manifold to limit gas population interference and aid efficiency. It also helps build boost pressure more quickly, claims Lotus, improving responsiveness.
And the cylinder block is forged from a chill-casting process as opposed to a more conventional sand-casting method, resulting in a stronger and more durable structure suited to - let’s face it - being ragged along your nearest B road many times over.
The 2.0-litre produces 360bhp at 6,600rpm, making it the most potent 4cyl Lotus sports car ever. Not bad when the back catalogue includes the Elise, Esprit, Europa, Elan and Elite.
V6 gets playmate in the form of a Merc-derived 2.0-litre turbo with 360bhp
www.topgear.com