Year-over-year Canadian motorhome sales climbed 41% in December while year-end totals edged up 1.5%, according to the latest report from Statistical Surveys Inc. Forest River Inc. was the Canadian motorhome sales leader for the full year, capturing a 33.1% market share, followed by Thor Industries Inc. , Winnebago Industries Inc. and Jayco Inc. . December Class A registrations grew 17.9% while totals for 2014 rose 3.8%.