• “¢  Competes With: BMW 6-Series and M6.
• “¢  5.4L AJ-V8 Gen III mated to a 6-speed ZF 6HP28 automatic.
• “¢  XK Portfolio produces 385-hp; XKR produces 510-hp.
• “¢  Both models arrive in dealerships later this summer.

It’s the night before the 2009 Detroit Auto Show press days and the world debuts are starting to roll in. The 2010 Jaguar XK has been unveiled and the new generation of the XK Coupe and Convertible get revised exterior styling and performance upgrades.

Styling revisions on the 2010 Jaguar XK Portfolio and the 2010 XKR include a new front bumper, new side mirrors with integrated LED side repeater, rear bumper spoiler, rear LED lights and color-coded side power vents for both coupe and convertible versions. The 19-inch 10-V-Spoke Caravela wheels are now standard on the XK Portfolio while the 19-inch 10-spoke Tamana wheels are now standard on the XKR. 20-inch wheels are available as options on both models. The range is now available in 15 exterior colors – two of which, Salsa and Kyanite Blue, are reserved exclusively for XKR.

Standard interior features include a satellite navigation system, Bluetooth connectivity, USB/AUX and iPod support, dual-climate control and live-traffic updates. All features can be controlled through the 7-inch touchscreen in the center console – which is also standard on all models.

Follow the jump for more details and the high-res image gallery.

2010 Jaguar XKR:

Both, the 2010 XK Portfolio and the Supercharged XKR are powered by the all-new 5.0L AJ-V8 Gen III engine. The engine delivers a significant power increase while keeping fuel-efficiency at the level of the current XK models. The engine allows for 385-hp with a maximum torque of 380 lb-ft on the XK Portfolio allowing it to go from 0 to 60 mph in 5.2 seconds. The XKR gets a supercharged version of the AJ-V8 that produces a total of 510-hp and a peak torque of 461 lb-ft. The 0 to 60 mph sprint on the XKR comes in just 4.6 seconds. Both models have an electronically-limited top speed of 155 mph.

The XK Portfolio and the XKR transfer all that power to the wheels via Jaguar’s 6-speed ZF 6HP28 transmission with wheel-mounted paddles or full automatic mode via the JaguarDrive SelectorTM. Jaguar estimates the fuel-economy on the 2010 XK Portfolio at 25.2 mpg and 23 mpg on the 2010 XKR.

Both models will arrive in the later part of summer 2009.

2010 Jaguar XKR: