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Stop-start Vehicles allow the internal combustion engine to shut-down when the vehicle stops in traffic, and re-start quickly to launch the vehicle. Fuel is conserved by reducing the time spent idling. Various technologies including starters, alternators, batteries, and direct injection may be used with enhanced control strategies to enable the engine stop and restart. These vehicles are not considered hybrid electric vehicles, because electrical energy is not used to propel the vehicle.

Vehicle Testing Reports

2010 SMART FORTWO Baseline Performance Testing (PDF 171KB) Fleet Testing Fuel Economy (PDF 176KB) VIN 6476 Fact Sheet (PDF 565KB) Maintenance History (PDF 176KB) VIN 6644 Fact Sheet (PDF 571KB) Maintenance History (PDF 142KB) VIN 6659 Fact Sheet (PDF 579KB) Maintenance History (PDF 141KB)

2010 VOLKSWAGEN GOLF DIESEL Baseline Performance Testing (PDF 205KB) Fleet Testing Fuel Economy (PDF 187KB) VIN 5777 Fact Sheet (PDF 594KB) Maintenance History (PDF 178KB) VIN 8111 Fact Sheet (PDF 581KB) Maintenance History (PDF 142KB)

2010 MAZDA3 HATCHBACK Baseline Performance Testing (PDF 193KB) Fleet Testing Fuel Economy (PDF 182KB) VIN 1865 Fact Sheet (PDF 567KB) Maintenance History (PDF 179KB) VIN 2736 Fact Sheet (PDF 556KB) Maintenance History (PDF 180KB)

Other Information or Reports

• Quantifying the Effects of Idle-Stop Systems on Fuel Economy in Light-Duty Passenger Vehicles Report - December 1012 (PDF 386KB)