Matt DeBord/BI The BMW X7 is the largest vehicle the Bavarian brand has ever produced. We tested a $108,000 BMW X7 XDrive50i, outfitted with a 4.4-liter V8 engine and crammed with technology. The BMW X7 is intended to go up against the Mercedes GLS, the Audi Q7, the Volvo XC90, and a host of other […]