Jeep is unleashing its fastest ever production model at the New York motor show this week - the Grand Cherokee SRT8 makes its debut with the group's new 6.4 litre Hemi V8 boasting a muscular 465hp matched by 465lb ft of torque.
Those numbers are sufficient to deliver a 0-60mph time of 4.8 seconds, and an electronically limited maximum of 155mph. The company also reckons the SRT8 is the best handling Jeep ever, as well as the fastest, which is probably just as well...
The new engine also appears in the latest Chrysler 300 SRT8 at New York - a car billed in turn as the Chrysler brand's 'most powerful and best handling ever'. The big Hemi unit was first introduced to our Yankee cousins in the limited edition Challenger SRT8 late last year.
In the Grand Cherokee SRT8, Jeep's 'sporting' intentions are implied by ride height one inch lower than standard, body colour sill and arch extensions, body colour grill and 20ins alloys with Pirelli P Zeros. Inside you get paddle-shifters on the wheel allowing a choice of (and we quote...) 'spirited shifting on the road and the race track.'
The 300 SRT8 also gets a set of 20ins alloys, and a 'meaner' grille treatment. Both cars go on sale in the US this summer, but there's no word yet on prices.