Having only putted around the streets and a short squirt up the M2, I have never really driven my W116 for any extended period at high speed (over 110 kph) It may not really be that fast but with 50kph zones everywhere in Sydney it is a big difference.
Drove from Sydney to the Central Coast up the F3 today and the 450 just sings along the whole way - it is revving way too high for a V8 (damn these 1976 gear ratios suck!) but barely required any throttle to blast up all of the...