Real MPG: Vauxhall Astra Twintop (2006 - 2011)
Select engine for more Real MPG information:
| Engine | Official MPG (NEDC) | Official MPG (WLTP) | Real MPG Avg. | Real MPG % | |
| 1.6 16V | 42.8 mpg | - | 36.1 mpg | 84% | |
| 1.8 16V | 36.7–40.4 mpg | - | 34.0 mpg | 88% | |
| 1.8 16V Automatic | 38.2 mpg | - | 27.9 mpg | 73% | |
| 1.9 CDTi | 47.1 mpg | - | 42.7 mpg | 91% | |
| 1.9 CDTi 16V | 47.1 mpg | - | 46.1 mpg | 98% | |
| 2.0 Turbo | 29.7 mpg | - | 26.4 mpg | 89% | 
Read the Honest John review...
Vauxhall Astra Twintop (2006 - 2011)
                Smart looks. Drives well, especially the 2.0 Turbo. Keen pricing.
            
        Rivals
| Vauxhall Astra Twintop (2006 - 2011) | 36.8 | avg mpg | 
| Alfa Romeo Spider (2007 - 2011) | 28.4 | avg mpg | 
| Peugeot 207 CC (2007 - 2015) | 40.8 | avg mpg | 
| Mitsubishi Colt CZC (2006 - 2011) | 39.6 | avg mpg | 
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