XKR
Engine	Original Power	Stage 1	Difference	Vmax
4.0 V8	266 kW (363 hp) 505Nm	292 kW (398 hp) 535Nm	36 hp	✓
4	276 kW (375 hp) 525Nm	296 kW (402 hp) 570Nm	27 hp	✓
4.2 V8 Supercharged	306 kW (416 hp) 560Nm	328 kW (446 hp) 655Nm	30 hp	✓
5.0 V8 Supercharged	375 kW (510 hp) 625Nm	412 kW (560 hp) 720Nm	50 hp	✓
5.0 V8 Supercharged	404 kW (550 hp) 693Nm	441 kW (600 hp) 733Nm	50 hp	✓