I feel it is aimed at the 30 something, lithe and flexible driver... not a stiff and no longer very flexible 70 year old.
According to the staff it drives really well.
As a mere 69 year old I have been in and out of several Super 3's and didn't find it a problem to get in and out without standing on the seat. Agree the cockpit edge is higher than the M3W, and the cockpit is wider but only just, comparing with the M3W the seat base is only approximetely 1/2 inch wider.