Also me old china 118 at Wheels= 139 at crank

Where the 156 came from the lord alone knows

Even a four wheel drive (as zippy states above) doesn't loose over
25 % of it's power through the drive train.

And again unless your Rolling road operator has managed to rewrite the laws
of physics/something you and I know he hasn't, I think he may
have been fibbing slightly.

REmember kiddies the machine measures wheel horse power, nothing else.
The crank power comes from whatever fanciful figure the operator
or software he uses cares to calculate

.