Audi TDI - "Truth in 48" - 48 Hours of TDI - Q5 TDI on I-405 and I-5 at rush hour - 91.5 miles at 48.0 mpgUS - www.CleanMPG.com
Latest D5 ups power and fuel economy. The upgraded versions of the Volvo V70, XC70 and S80 (shown) are the first in the model range to feature...
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