Land Rover's flagship model, the full-size luxury Range Rover, comes to market with some major changes for 2006, enhancing the lineup that had already received a complete makeover just three years ago The biggest news is the addition of a supercharged version, billed as the "most powerful Range Rover ever". But the normally aspirated HSE model, which we tested for this report, has also received its fair share of updates. Another big change for It is 2006 that the Range Rover's engines are now derived from Jaguar. These new engines replace the V-8 that Land Rover had purchased from German luxury automaker BMW, Land Rover's former owner. Ford Motor Co. bought the British luxury brand Land Rover in mid-2000, ending the company's short life as a subsidiary of BMW, which had bought it just four years earlier. Today's Range Rover owes much of its development to BMW, however. BMW co-developed the vehicle with Land Rover so that the platform could also be used for a new line of BMW sport utility vehicles. Ford took over and finished development of the Range Rover side of the equation, launching the new generation in 2002 as a 2003 model. Development was so advanced by the time Ford took over that Land Rover had to purchase the 4.4-liter V-8 engine and 283 horsepower from BMW. It took Ford three years to develop its own engines and redesign the Range Rover to accommodate them. In the 2006 model, the base engine is a normally aspirated aluminum 4.4-liter V-8 rated at 305 horsepower and 325 pound-feet of torque. . That's what comes with the Range Rover HSE model, our test vehicle, which costs a base price of $75,035 plus $715 freight. For a starting price of around $90,000, the high-performance Range Rover model is offered. It comes with a Jaguar-based supercharged 4.2-liter aluminum V8 rated at 400 horsepower and 420 pound-feet of torque. In both models, the engines are connected to a new six-speed automatic transmission with a Command Shift manual shift option. . Land Rover says the naturally aspirated model's top speed is 125 mph, and the vehicle accelerates from zero to 60 mph in 8.3 seconds. For the supercharged model, zero to 60 is achieved in 7.1 seconds and the top speed is 130 mph. Land Rover officials said the move to Jaguar engines was a natural progression of the association between Land Rover and Ford.