The
M & S kit's uses the floor donated from the Tamiya 962C. And
while the templates calls out the reduced length, the trailing edge height
of the actual car 's floor is much higher than the standard 962C (as depicted
in Tamiya's kit) with the floor well clearing the drive shafts. 
The
trailing edge of the kit's intercooler duct isn't as tapered and is
missing
the teardrop shaped turbo cooling exit duct as shown here. Also
note that the NACA duct and the turbo cooling exit duct are off center
(left justified) to the intercooler duct.