One thing I particularly noted about the MP4-12C was the rather minimal (relatively speaking) front-rear overhang, presumably making ascent/descent angles much more manageable & navigable. Not sure if this is perception or reality.
Regardless, I've always been a fan of cab-forward designed platforms, in-particular w/ rear mid-engine sports-cars!
Some interesting figures:
MP4-12C
Wheelbase: 2,670 mm (105.1 in)
Length: 4,507 mm (177.4 in)
458 Italia
Wheelbase: 2,650 mm (104.3 in)
Length: 4,527 mm (178.2 in)
Gallardo
Wheelbase: 2,560 mm (100.8 in)
Length: 4,345 mm (171.1 in)
R8
Wheelbase: 2,650 mm (104.3 in)
Length: 4,431 mm (174.4 in)
Evora
Wheelbase: 2,575 mm (101.4 in)
Length: 4,342 mm (170.9 in)
Cayman (987)
Wheelbase : 2,416 mm (95.1 in)
Length: 4,376 mm (172.3 in)
911 (997)
Wheelbase: 2,350 mm (92.5 in)
Length: 4,460 mm (175.6 in)
... from
Wikipedia (will verify manufacturers specs. when I get the chance)