I have a friend who operates a Mercedes-Benz Sprinter LWB for a living in South East London and he will shortly need a Euro6 model to keep costs down for his central London trips. My friend's 2011 Sprinter has been a great workhorse, but it's not been without its problems in the two years and 50,000 miles that he's had it (new clutch, injector, screen washer bottle and EGR Valve). It only has about 130,000 miles on the clock. Of the models you reviewed, which do you think will be most reliable? We were considering a Nissan NV300 or Toyota Proace (he doesn't need a vehicle as big as the Sprinter), until we discovered that they were French vans, and our mechanic advised against anything French if reliability was a concern. Are there any other vans we should consider?