Vauxhall Astra 1.7 CDTi ecoFLEX SRi Sports Tourer Stacks Of Services History, Will Come With 1 Years M.O.T, Clean Inside And Out, 4 Good Tyres. This 2013 Vauxhall Astra CDTi SRi presents an excellent choice for those seeking an economical and practical vehicle. With its 1.7 litre diesel engine, this SRi trim model offers a compelling blend of performance and efficiency. This Astra stands out with its impressive fuel economy, achieving up to 63 miles per gallon, which is significantly better than many other vehicles in its class. Furthermore, its low CO2 emissions contribute to a more environmentally friendly drive, and it benefits from a low insurance group, making it an affordable option for a wide range of drivers.