[Mike]

Whilst discussing Marlins with a very knowledgable member he advised me the Sportster and Cabrio share the same basic chassis - obviously the anchorage points have changed for the BMW, but the base chassis is still the same.

I find this an interesting proposition, and would like to check a few key dimensions, as I had always assumed the Sportster had more room in both the engine bay and cabin?

Obviously all the GRP panels, doors and bonnet can be different, possibly giving more engine space at the front, and certainly more arm room over the top of the doors.

But is the cabin the same internal width?
And the boot? - is it the same as the old Cabrio without a lid?

What is the clear space between chassis rails:
just before they arch over the rear wheel?
over the rear wheel?
where the fuel tank fits?
at the front where it joins the cross member?

What is the wheel base of the LWB Sportster?
Again, I've been informed the Sportster had its wheelbase extended when the Cabrio was increased in length, because it shares the same chassis, so presumably some of the early Sportsters are SWB?