Affluent driving enthusiasts will love the 7-series especially BMW 750i xDrive, both for its luxurious cabin and its surprising agility. The iDrive system controls infotainment with gesture control; there’s wireless charging for smartphones. The 320-hp 3.0-liter turbo inline-six is adequate, but the optional 445-hp 4.4-liter twin-turbo V-8 really moves. A plug-in hybrid is EPA rated for 75 MPGe. Rear-drive is standard; all-wheel drive is standard on the plug-in and optional on the V-8. The Alpina B7 has a 600-hp V-8.