If it is like the rest of the EU, almost all of it.According to the spreadsheet in this link , Jeep was the fastest-growing car manufacturer in the UK in Q1 2015 with a 280% (!!!!) growth in car sales year-to-date, and 396% (!!!!!!!!!) growth on March 2014.
March 2014 - 441 vehicles
March 2015 - 2190 vehicles
YTD 2014 - 716 vehicles
YTD 2015 - 2722 vehicles
I wonder to what extend the Renegade accounts for this rise, considering it was only released mid-February.