|Jaguar’s already hot XKR has gone in for the “S” treatment, and the result is a harder-edged cat that’s better in nearly every respect. The 420-horsepower supercharged V8 and lightweight aluminum construction are the same—and that’s good news, as the XKR-S can reach 60 mph in the low four-second range. Using that massive performance potential as a base, Jaguar set about improving the driving dynamics by revising the suspension significantly. Peer underneath and you’ll find the expected stiffer springing, but Jaguar’s also increased the camber and dialed in stiffer caster rates for more responsive handling. At the same time, the XKR-S is shod with larger, lightweight rims and unique styling elements such as the rear decklid spoiler and rear diffuser tray. The result is a noticeable increase in cornering ability and plantedness. With just 200 produced, and only for the European market, an XKR-S is a rare but heart-pounding ride.|
— Official description 
The Jaguar XKR-S is a high performance version of the pre-facelift XK. It is limited to 200 units and has a more enhanced enterior as well as a 10mm lower ride height then the XKR.
In 2011, at the Geneva Motor Show, a facelifted version of the XKR-S was revealed with more power and more aerodynamics, as well as being put into series-production.
|Conversion - Engine|
|V6TT - Jaguar XJ220|
|Conversion - Aspiration|
|1950s||C-Type · D-Type · Mk II 3.8 · XK 120 SE|
|1960s||E-type S1 · Lightweight E-Type|
|1980s||#1 - #60 XJR-9 · #44 XJR-5|
|1990s||XJ-S · XJ220|
|2000s||XK Coupe · XKR-S '09|
|2010s||#14 GT3 Jaguar XK · #33 RSR XKR GT · #47 I-Type 1 · C-X75 JB · F-Pace S · F-Type Project 7 (Forza Edition, Horizon Edition) · F-Type R Coupé (Fast & Furious Edition) · XE-S · XFR · XFR-S · XKR-S '12 · XKR-S GT|