Went from a tuned, header, exhaust, 420RWHP 09 LS3 C6 and a 370RWHP tuned 08 Silverado 6.0 to an X5 Diesel and an 07 550i. Honestly, the 550i is a great car to REPLACE the Corvette, let alone have in ADDITION to. So i think you will enjoy the car.
Looking to add another 'Vette in the future though. Maybe a C7..
2012 X5 35d-Black Sapphire/Graphite - SAV, Premium, Cold Weather, Navigation, HiFi Sound
2009 328i Touring 6MT-Montego Blue/Oyster - Sport Package, Navigation, H/K Logic 7, Lighting Package
2007 550i-Mystic Blue/Graphite - Sport Package, Premium, H/K Logic 7, Cold Weather