BMW 5 Series vs Mercedes E-Class 2018 review - which is best? | Head2Head

The new BMW 5 Series has arrived. But is it better than the Mercedes E-Class? To find out I put the two premium saloons head-to-head in a series of tests. I'll compare their design, interior, technology, space and practicality as well as seeing how they both drive. The Mercedes smashed the previous BMW 5 Series in 2016. But will it be able to defend its crown against this all-new 5 Series which actually shares a lot of its parts and technology with the larger, more expensive 7 Series? Watch to find out