BMW has added a six-speed Semi Manual Gearbox (SMG) to a range of its smaller six-cylinder models including the 2.5-litre Sport Compact, 3-Series sedan and coupe and the 3.0-litre 3-Series Coupe and Convertible.
Prices for this tricky transmission range from about $67,000 for the Compact 2.5 through to $116,000 for the 330Ci Convertible.
We took the 330Ci for a spin.
- Comes at a $2400 premium and other provisos regarding vehicle specification.
- Adds a third transmission option to the BMW range, manual, steptronic auto and SMG.
- System can be used as an auto in D mode or through the gearstick sequentially or by steering wheel-mounted paddles.
- Using change paddles, hands never leave steering wheel.
- Multiple shift modes available, also adaptive.
- Similar to SMG in M3 but simpler. Transmission has clutch and gearbox like a regular manual but hydraulic self-shifting mechanism.
- All SMG gear operations are simple to use – foolproof.
- Blips throttle on the down change. Brum, brum.
- Automatically shifts up in sports mode as engine redline is approached.
- Has kick-down fnction and winter mode for starting off in icy conditions.
- Still reckon a manual is quicker (arguably) and offers more control.
- It's possible to find yourself in the wrong gear at the wrong time if you are not paying attention.
- Changes in D mode are not ideal, certainly nowhere near as smooth as true automatic.
- The 330Ci is a great driver's package, with any transmission. We might be oldies but prefer the automatic.
- Engine is one of the best sizes around, bestows superb performance, sound. Relatively frugal, smooth as silk.
- SMG adds a lot to the price, debatable benefits, great for bench rancing at a barbecue and, of course, showing off at the golf club.

BMW 330CI 2004: Smg
| Engine Type | Inline 6, 3.0L |
|---|---|
| Fuel Type | Unleaded Petrol |
| Fuel Efficiency | 10.1L/100km (combined) |
| Seating | 5 |
| Price From | $13,420 - $17,600 |
Range and Specs
See all 2004 BMW 3 Series in the Range
*Manufacturer's Suggested Retail Price