Since the oil coolers are up front it would be nice if the filter was moved up there under one of the panels within easy reach. The battery was moved to the trunk to make room for the oil coolers, so I dont know if there would be enough room.
I might be easier to disconnect an oil cooler hose and drain it that way, but then you still need to change the filter. And it might still have an underbody panel in the way. If the cooler line hose is lower than the drain pan wouldnt the oil flow to the lowest point?
For heavens sake don't buy it from the dealer, $15 for a $6 dollar filter is a little crazy. My one experience with a dealer for the 1000 mile check up has cured me of Lotus dealers. Unless it is warranty work for no charge they have seen the last of me! Man I thought BMW dealers were over the top, they could take a lesson from Lotus.
i buy my toyota filters for less than 4 dollars each. I just look for dealer coupons that I get from 3 local dealers every couple of months (we have an mr2 and highlander). Dealers also advertise in the local "Advertiser" paper in SF.
There's also a dealer in NY, if I remember correctly, that gives a good discount when you buy 6 filters. I know they used to advertise in the back of some auto magazines, but I can't think of their name right now.