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Audi RS5 TDI Concept gets electric turbo and 380bhp

The Audi RS5 TDI Concept (pictured) gets an electric turbo It’s two years since Audi revealed it was working on an electric turbo to be used in a twin-turbo setup, with the electric turbo able to offer boost pressure from much lower down the rev range than a normal turbo. That has turned in to the Audi RS5 TDI Concept, where Audi has replaced the normal RS5‘s V8 with a 3.0 litre TDI engine with a small electric turbo for low rev work and a bigger turbo to do the higher rev stuff. The electric turbo works from the off to provide maximum torque of 553lb/ft from just 1250rpm, before the bigger normal turbo takes over at 3,000rpm to continue the boost.

Jaguar XJ Review (2012): 3.0 litre Diesel Portfolio LWB

We’ve had the latest version of the Jaguar XJ in for review – the LWB 3.0 litre Diesel Portfolio with Sports Packs – to see how the XJ is maturing. It’s getting on for two years since we had the first Jaguar XJ in for review, and almost three years since we first saw the new XJ at the Saatchi Gallery in London, almost a year before Jaguar managed to get their new range-topper in to showrooms. In between we had a long-term XJ in for review which was with us for four months and proved to be far more reliable than the early car we had in – which did have problems – and a car we covered most the UK in with almost nothing in the way of hiccups.

Porsche 911 Turbo Cabriolet revealed with 197mph top speed

Porsche has revealed the new 911 991 Turbo Cabriolet and Turbo S Cabriolet range – a 197mph open-top Porsche 911. Boasting 520hp even in standard Turbo guise, and a huge 560hp in Turbo S form, the new 911 991 Turbo Cabriolet range follows hot on the heels of the new 911 991 Turbo coupe range, which MSN Cars drove back in August. Click on the image above to see how Porsche has turned a hard-top Turbo into an open-top barnstormer…