I find it more fun when power>chassis capability. That said I haven't driven the 550xi, but I think my comment on this point is more about 550i Dinan vs Pany 4S.
Originally Posted by RH512
Pretty much agree with Stealth.Pilot - though don't think I'd go with the fun comments.
If the money is not in the equation and you want a drivers car, it's the Pannmera.
One of the problems with incredibly well engineered performance cars is that they are too planted. This is one of the reasons I've historically loved driving Maseratis.
2014 Porsche 911 Turbo S
2015 Mercedes C300 4MATIC
Memberships: BMW CCA, Peachstate PCA, NMA, AAA, RAC
2015 Jaguar F-Type R
2014 BMW M5 Individual Dinan Stage 1
2013 BMW M5 Individual
2012 BMW 550i Dinan Stage 2
2004 BMW M3
2001 BMW 330Ci
1997 BMW 328Ci
1994 BMW 325Ci