But that doesn't mean famed BMW tuner Alpina doesn't want to get involved. Lay your eyes on the BMW Alpina B5 Biturbo, packing 608 horses and 590 lb-ft of torque.
According to Alpina, squeezing all that power out of BMW's 4.4-liter V8 is enough to rush the B5 Biturbo from 0-62 mph in just 3.5 seconds—the quickest car the tuning firm has ever produced—on the way to a top speed of 205 mph.
Electronically adjustable dampers control the motions of the signature 20-inch Alpina Classic 20-spoke wheels, while the 5-series' active rear steering aids in the big-body sedan's agility. Like the 7-series-based Alpina B7 xDrive, the all-new B5 offers all-wheel drive as standard for the first time in the history of Alpina-ified 5-ers.
And, yes, there's an achingly elegant wagon version that does 0-62 mph in 3.6 seconds with a top speed of 202 mph. It's almost assuredly never coming to the US.
Alpina's offerings have always aimed for a slightly different result than BMW's own M offerings—the tuner seeks to offer effortless performance aimed at relaxed, fast-paced grand touring, not the frenetic apex-attacking aggression of an M machine. That kind of capability in the excellent new 5-series platform definitely sounds like a winning recipe.