The Mercedes Viano is essentially a van with more seats, so there's loads of interior space..rash tested in 2008 by Euro NCAP the Viano scored four stars for adult safety and three for children. The mechanical build quality of the Viano is very high as it shares a platform with Mercedes' highly dependable commercial van, the Vito.
Expert hypermiler Wayne Gerdes set a new Guinness World Record for fuel economy in a 2013 Volkswagen Passat TDI, a diesel-powered midsize sedan. The Passat used just 104.94 gallons of fuel for an average fuel economy of 77.99 miles per gallon. That beats the old record, established in 2009 by an Australian couple. Over their 9,505-mile trip, Helen and John Taylor averaged 67.90 miles per gallon in a 2009 Volkswagen Jetta TDI.
Test drivers like the fact that the Passat has three engines and four transmissions to choose from. The Passatâs multiple combinations should satisfy most drivers. Overall, the Passat drives like a German-engineered car, and its optional fuel-efficient diesel engine is a rare offering in the class.