The high-performance supercharged motor hits 60mph in 4.7 seconds, and features 20-inch alloy wheels, revised styling, a rear spoiler and four exhausts.
XFR models will arrive at Jaguar dealers in March, for £59,900. There will also be a cheaper non-supercharged 5.0-litre V8. This produces 385bhp.
But Jaguar isn’t forgetting green buyers, either. The company also pulled the covers off the new 3.0-litre V6 turbodiesel XF. This car returns 42mpg, and emits 179g/km of CO2.
Producing up to 275bhp, it is 33 per cent more powerful than the 2.7-litre V6 turbodiesel XF. Jaguar confirmed to car dealers that the 2.7-litre engine will be replaced by this new unit.
This Diesel S XF can hit 60mph in 5.9 seconds. A cheaper 240bhp version will also be available. Prices start at £33,900.
A high-end ‘Portfolio’ range of XF models was also announced at the Detroit show, catering for richer Jaguar buyers.
Jaguar unveiled the facelifted XK range, too. Again, these feature the new 5.0-litre V8 engine. An XKR now hits 60mph in a Porsche 911 challenging 4.6 seconds.
The front end has been redesigned, there are LEDs at the rear, and the XK’s interior gets a centre console similar to that in the Jaguar XF.
Mike O’Driscoll, MD of Jaguar Cars, said: ‘We’ve started 2009 with the introduction of advanced new generation petrol and diesel engines, that set new benchmarks in terms of performance, economy and efficiency.
‘Our cars meet the challenges of the modern world, and the needs of today’s consumers – and they’re also true to the Jaguar philosophy of creating beautiful fast cars.’