XKR-S An Overview Of Jaguar’s ‘Top Cat’
By James Groth for the English Car Company
French Racing Blue – Jaguar XKR-S
The XKR-S was introduced at the Geneva Auto Show in 2011 as a 2012 model, production ran until 2015. This’ top cat’ model is about high horse power and performance on and off the track while still maintaining Grand Touring comfort. The ’S’ designation XKR’s were the highest development of the XK range adding an additional 40 hp over the standard XKR. The XKR-S was the fastest Jaguar ever produced, even surpassing the XJ220 Supercar built from 1992-1994 that listed for nearly three-quarters of million at the time of production.
Jaguar XJ 220 out front of an XKR-S
Pricing for the 2012 coupe started at $97,500. The final 2015 coupes were priced at $135,875. The convertible version cost an additional $6,300 there were no additional options. The XK’s staring with the 2007 model were
the first aluminium body sports cars form Jaguar since the earliest XK 120 in1950. These alloy cars are also 30% stiffer than the XK8 models from 1997 to 2006.
Power is derived from a Supercharged 5,0 liter DOHC 32 value AJ V8. Horsepower is 550 with 502 lbs.ft of torque available from 2,500 to 5,500 rpm.This works out to 109 hp per liter. The comparison ratio is 9.5:1. The power is released via a six-speed automatic transmission that features a popup rotary ‘Jaguar Drive Selector’ along with alloy paddle shifters. The final drive is 3:31 and top gear is 0.69. The 0-60 mph performance is 4.2 seconds and the quarter mile is turned in at 12.5 sec at 118 mph. All excellent numbers for a 4,079 pound car without launch control. Top speed is 186 mph / 300-Kph.
Blue XKR-S on track
Perhaps the most impressive number is the sub eight minute time of the XKR-S around the 8 mile Nurburgring. race track. The XKR-S clocked in at 7:51:00, to this day very few supercars have turned a sub eight minute time at this challenging track in Germany. The ‘Active Differential’ contributes by sending torque to the outside rear wheel keeping the car from skidding. Traditionally the feature that separates Jaguar from its German competitors has been its ride quality; an ideal balance of handling and comfort at speed. The XKR-S keeps this tradition alive even at track speed.
Jaguar’s ‘Adaptive Dynamic Suspension’ has a lot to do with the lap times the XKR-S turns on the track. Many of the components are made of forged aluminum and contribute to the 0.92 g on the skid pad. The XKR-S sits 0.4 mm lower than the standard XK. Road testers have recommend that the stability control be left on by all but the most experienced drivers or you will find yourself running sideways if you enter a turn well over the limit. The braking distance from 70 mph is 156 feet.
Pushing the checkered flag logo on the center console automatically activates the ideal set up to keep the suspension stiff, with crisper gear shifts and to release the throaty roar of the exhaust. One of the most notable features of the XKR-S is its ‘Performance Active Exhaust’ system. Road testers have voiced positive comments on the aural pleasure and excitement the exhaust note hits in this set up. Its fullest effect is felt in the convertible with the top down.
Black XKR-S with Jets
Contributing to the car outstanding grip are its Pirelli P Zero tires, 255/35/20 up front and 295/30/20 on the rear
mounted on 9’ and 10.5” forged aluminium wheels. The carbon-fiber aero splitter up front, rocker panel extension, rear diffuser and the first wing fitted to a street Jaguar all add to the track stability and lap times. Per Jaguar Cars Inc. the lift at high speed is reduced by 26% over the standard XK. The coefficient of drag is 0.34. The EPA fuel ratings are 15 city and 22 highway, with no gas guzzler tax attached.
XKR-S sports seats
The leather seats are complemented with contrasting switching in three colors to coordinate with the six available exterior colors. There was a choice of the traditional wood accented interior or in keeping with the 3.8 E-type aluminium accents are offered. The headliner is made from Poltroon Frau Jet leather.
Just when we thought the XKR-S would be the all-time performance model Jaguar decides to make their version of a GT3 car the XKR-S GT. Jaguar introduced the GT version primary for the track, its looks and performance befit a true GT3 car. The most notable feature is the fixed wing, it’s the first on any Jaguar. The wing creates 320 pounds of downforce at 186 mph.The front end is also unique including having different headlights.
XKR-S GT on track
At the Nurburgring track the GT turned as amazing 7:40 minutes over the eight miles.The 0-60 mph drops to 4.1 seconds and the quarter mile is turned in 12.3 seconds at 119.7 mph. For stopping power the GT has 15.7 inch rotors with six pistons up front and 15 inch rotors with four pistons on the rears.
XKR-S red convertible
Because the XKR-S had a short model run and is the most powerful Jaguar we can expect to see the collectors and racers seek it out. It will be interesting to see how the collectors at classic car auctions treat it a decade from now, I would expect to see the XKR-S GT to be one of the most sought out and highest priced sports cars for its era at the top auction houses globally.
Jaguar XKR-S (550 PS) specs
|Curb weight||1843 kg (4063 lbs)|
|Dimensions||4.79 m (189 in) long, 1.89 m (74 in) wide, 1.31 m (52 in) high|
|Wheelbase||2.75 m (108 in)|
|Power / weight||299 ps (295 bhp) / t|
|Torque / weight||369 Nm (272 lb-ft) / t|
|Origin country||United Kingdom|
|Top speed||300 kph (186 mph)|
|0 – 40 kph||1.5 s|
|0 – 80 kph||3.4 s|
|0 – 100 kph||4.2 s|
|0 – 180 kph||10.7 s|
|0 – 200 kph||12.8 s|
|0 – 300 kph||43.4 s|
|0 – 60 mph||4.2 s|
|0 – 100 mph||8.4 s|
|Est. 1/8 mile||8.1 s @ 96.9 mph|
|1/4 mile||12.5 s @ 118.1 mph|
|Est. 1/2 mile||19.0 s @ 143.5 mph|
|Est. 1 mile||30.6 s @ 165.9 mph|
|Est. 1000 m||22.0 s @ 243.0 kph|
|Est. 100 – 200 kph||8.6 s|
|Est. 200 – 300 kph|