Porsche Has Been Accused Of Cayman R UK Emissions Test Cheating

Discrepancies in the Cayman R's UK emissions have been linked to taxation groups, with Porsche now being accused of deliberately manipulating the car's tests

Matt Kimberley

16 May 2018

Porsche Has Been Accused Of Cayman R UK Emissions Test Cheating

Porsche Great Britain has been accused of manipulating the results of the old Cayman R’s emissions tests to drop it into a cheaper road tax group.

Autocar is reporting that a report on an “unrelated safety issue” also uncovered that the Cayman R had repeatedly been driven away in second gear for the tests, keeping revs lower and significantly reducing the amount of CO2 emitted at urban speeds.

Allegedly too much CO2 - but what pretty exhausts to exhale with

The 3.4-litre R was given a 221g/km rating for the UK, putting it into what was then a £315 annual tax payment bracket. Continental Europe rates the same car at 228g/km, which in the UK would have put it into the £540 window instead. Cheeky, if true.

The Times newspaper is speculating that the UK treasury has lost around £3 million as a result of potentially incorrect tax groups for Boxster S, Boxster Spyder, Cayman S and Cayman R models. Porsche has refused to comment, citing ongoing dieselgate legal proceedings involving one of its board members.

Source: Autocar