2004 BMW 6 Series Convertible 645Ci Convertible
The 2004 BMW 6 Series Convertible 645Ci Convertible is a 325-hp 4.4-liter V8 convertible with a 6-speed manual and rear-wheel drive. It starts at $76,995 MSRP and is rated at 18 mpg combined.
It makes 325 horsepower at 6,100 rpm and 330 lb-ft of torque at 3600 rpm. EPA fuel-economy estimates are 15 mpg city and 23 mpg highway (18 mpg combined).
The 6 Series Convertible measures 190.2 inches long on a 109.4-inch wheelbase and has a curb weight of 3,781 lb.
| Spec | Value |
|---|---|
| Price | |
| MSRP | $76,995 ($132,469 *) |
| Engine | |
| Engine Type | 4.4-liter DOHC 32-valve V8 |
| Displacement | 4.4 L |
| Horsepower | 325 hp @ 6,100 rpm |
| Torque | 330 lb-ft @ 3600 rpm |
| Valvetrain | DOHC, 32-valve |
| Drivetrain | |
| Drive Type | RWD |
| Transmission | |
| Transmission | 6-speed manual |
| Fuel Economy | |
| City | 15 MPG |
| Highway | 23 MPG |
| Combined | 18 MPG |
| Tank Capacity | 18 gal |
| Suspension | |
| Front Suspension | Electronically controlled |
| Tires & Wheels | |
| Wheels Front | 18" |
| Wheels Rear | 18" |
| Tires Front | 245/45R18 |
| Tires Rear | 245/45R18 |
| Dimensions & Weight | |
| Length | 190.2 in |
| Width | 73 in |
| Height | 54.1 in |
| Wheelbase | 109.4 in |
| Curb Weight | 3,781 lbs |
| Interior | |
| Headroom Front | 37.3 in |
| Headroom Rear | 35.5 in |
| Legroom Front | 42 in |
| Legroom Rear | 28.8 in |
| Shoulder Room Front | 56.4 in |
| Shoulder Room Rear | 49.4 in |
* Amount adjusted for inflation to 2026 dollars