2004 BMW Alpina B7

• Competes with: Audi S8, Mercedes-Benz S63 AMG
• Looks like: A land yacht turned speedboat
• Drivetrain: 500-hp, supercharged 4.4-liter V-8 with six-speed automatic; rear-wheel drive
• Hits dealerships: January 2007
• MSRP: $115,000