Performance and efficiency. These are the two cardinal attributes that all car designers are aiming for these days, and Jaguar is no different. For the last few years, the automaker's latest XK has relied heavily on its riveted and bonded aluminum-intensive architecture to achieve low weight, which is the first necessity for sporting credentials. For 2010, Jaguar is taking that successful formula and adding lots more power via an enlarged version of its AJ V8 engine. Direct injection, variable valve timing and a variable-geometry intake manifold all conspire to increase power to 510 hp while also having the desirable effect of improving fuel efficiency. Of course, an impressive engine is only a small part of the overall desirability of a new car, and Jaguar claims to have given its XK line, available in both a Portfolio model and uplevel R-model for the 2010 model year, a thorough freshening. So, what are they on about? Plenty, it seems. Keep reading.
Gallery: 2010 Jaguar XKR
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