Hi Rosemary,

Generally speaking, I would say that your best bets (and I’m assuming you mean mid-size crossovers here) would be the Nissan Qashqai or Renault Kadjar (essentially the same car with the same frugal 1.5 dCi diesel engine), the Peugeot 3008 1.6 BlueHDI, or the SEAT Ateca 1.6 TDI. All of those should pretty easily crack the 50-55mpg barrier in real-world driving as long as you’re reasonably gentle.