Imagine you're overweight. A friend of yours tells you about a diet he got great results from. If you do the one simple thing he did, you'll lose around 1,000 pounds. You'd try it, wouldn't you? That's what's in store for the next generation Range Rover, with plans to give the Posh-UV an all-aluminum chassis.

The newer, lighter Range won't arrive until 2012, but engineers have sought approval to build it with a rivet-bonded aluminum monocoque. To do so, it would employ lessons and technology from the Jaguar XJ sedan. In light of the cost involved, such construction would also be spread throughout the Land Rover line. Weight savings for the Range Rover would be around 40-percent, equating to anywhere from 300-500 kg over the current version, a change that would seem to be all pro and no con. Engines would also be borrowed from Jag -- the same lumps expected to power the XF sedan. The 350-450 HP engines would go a lot further in an aluminum Range, as would a speculated hybrid version.

A decision on the aluminum option hasn't been made yet, but it is expected to get the go-ahead.

[Source: Motor Authority]