Man, I couldn't summarize it better myself...
it's very true that one image can be worth a thousand words... the benefits are so damn obvious from the perspective you've just showed us that there's really not much left to discuss... except:
Why
«we'd have read reams about the engineering prowess of founder Colin Chapman, who realised in the Fifties what other carmakers are only just beginning to understand now: lightness is everything»???????
Why isn't that obvious for BMW???????
Can you tell?????? Can you tell us why it was so obvious in the Toyobaru case?????
And if it's so obvious, doesn't doing the opposite look just plain stupid?????