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Fiat Selling Fiat 500 Start&Stop

Fiat is now selling in Europe a Fiat 500 model equipped with a start-stop system from Bosch. (Earlier post.)

Fiat 500 Start&Stop. Click to enlarge.

Called Fiat 500 Start&Stop, the new technology is based on the most successful 500 version—the 1.2 Lounge. The Start&Stop system stops the engine automatically (without the driver turning an ignition key) whenever traffic conditions bring the car to a complete halt, and restarts it when the driver wants to move off again.

With Start&Stop, CO2 emissions on the 1.2 engine are 113 g/km, while fuel consumption can be reduced by up to 11% (urban fuel economy figures).

Fiat 500 Fuel Consumption
1.2 69 bhp
1.2 69 bhp
Urban cycle L/100km (mpg US) 5.7 (41.3) 6.4 (36.7)
Highway L/100km (mpg US) 4.3 (54.7) 4.3 (54.7)
Combined L/100km (mpg US) 4.8 (49) 5.1 (46)
CO2 g/km 113 119

Several sensors and control strategies are employed to manage stop and restart operations, to guarantee safety, driveability and energy balance of the car with a minimum impact on heating and other services in the car.

Engine stop is only allowed once a speed of 6 mph has been achieved after pulling away. To restart the engine the clutch pedal must be depressed. The Start&Stop system can be manually activated or deactivated using a button switch.

Start&Stop will not activate in certain cases, including engine still cold, battery in low charge state, heated rear window active, front wiper at maximum speed or reverse gear engaged (in a parking manoeuvre).

If the engine has been stopped and the clutch pedal has not been depressed for more than three minutes, the engine can only be restarted using the ignition key. Similarly, if the engine has been stopped and the driver’s seat belt has been unfastened, or a door has been opened, engine restart will only be achieved with the key.



This Fiat starts at £9,500 in the UK or about $13.500 and go 49 mpg average. The VW Passat wagon BlueMotion go 48 mpg average and would probably sell for $32.000 if it was for sale in the US. None of these cars emit more than 130 grams of CO2 per kilometer and they cover most of the spectrum form small and affordable to large and convenient.

My point is that it is about time that we get a regulation that cap the maximum CO2 emissions allowed per vehicle to be sold. Even if you banned all new cars emitting more than 180 grams of CO2 per kilometer you would still be able to get cars in all price classes and for most levels of convenience. Indeed, right now there has never been a better time to introduce a CO2 capping regulation. It could shift demand to low CO2 emitting vehicles immediately and because there is plenty of available production capacity also for low emission vehicles it would not be problem to meet that demand. Of cause it would close down permanently the production of all the high CO2 emitting vehicles which is most needed to stop global warming and its resulting species extermination.

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