BMW X7 M60i Quicker Than Advertised In Acceleration Test Despite Damp Road Published on January 18, 2023 Auto/Business 394 views The X7 M60i may not be a fully fledged M car, but it does feature BMW’s newly developed S68 engine. It’s a twin-turbo 4.4-liter V8 like the S63-powered M50i it replaces, but now with mild-hybrid tech for extra efficiency. More