Toyota UK says 49.5-51.3 mpg fuel economy for new 2019 RAV4 (new WLTP ) https://www.toyota.co.uk/new-cars/rav4/ do You think that would be realistic compared to  Prius+ (new WLTP) https://www.toyota.co.uk/new-cars/prius-plus/ 47-48.7 mpg I've driven my (new) Prius + 2016/17 for 2000km (about 1242 miles ? ) now ( from dec 7 to jan 14 mixed driving in cold weather . -3 to +6 degrees) and when I check fuel consumption brim to brim it says  55'6 mpg