They are rare - 2000 made in two years - LWB is the US badging for the LSE, invariably a 4.2 in a 108 inch wheelbase, very few 3.9`s ( some for Australian market for example). Many were exported, mostly to the US, which was the target market
DVLA showed just 550 left in UK December 2010, which I think is high.
£39,995 when new.
I believe the first twenty went to the Government and Royals - the Queen Mother had one, which is now at Gaydon. I also suspect those 20 had the rear picnic tables and drinks fridge as options, which are like hens teeth.