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17/09/2008 06:14. The 2010 Jaguar XJ is nearing production and its makers are pulling the stops out to finalize its new engines. The new XJ will debut three new powerplants that should deliver both improved performance and improved efficiency. And boy does the Jaguar range need plenty of both. But what will they be?

A 5.0-liter V8 available in both supercharged and naturally aspirated form will power the range topping XJ V8 and XJR. Expect more power than the current 4.2-liter V8, which makes 300... // Jalopnik