You need to be more specific, state a model and a year. The XK series had many variations and at least 3 different engines.
Very fast these sport cars are very fast but it depends on witch one you get but it goes about 150 mph
Jaguar XK was created in 1997.
Depends on the year and model. The fastest one is limited to 174mph
The 2012 Jaguar XK has 32 valves.
The 2014 Jaguar XK has 32 valves.
The 2009 Jaguar XK has a V8 engine.
The 2009 Jaguar XK has 32 valves.
The 2010 Jaguar XK has a V8 engine.
The 2015 Jaguar XK has 32 valves.
The 2011 Jaguar XK has a V8 engine.
The 2013 Jaguar XK has a V8 engine.
The 2015 Jaguar XK has a V8 engine.