Snowmobile Vehicle

Performance
Performance of snowmobiles has improved exponentially since their inception with a sharp spike in performance in the last 15 or so years. The first snowmobiles made way with as little as 5 horsepower engines. Engine size and efficiency has grown considerably in the last 15 years. In the early 90's, the biggest engines available (typically 600-650cc range) produced in the neighborhood of 115 hp. Today several late model snowmobiles are available with engines sizes up to 1200cc, producing 150+ hp, as well as several models with up to 1000cc engines producing closer to 180 hp. Snowmobiles are capable of moving across steep hillsides without sliding downslope if the rider transfers his weight towards the uphill side.
Mountain sleds permit access in remote areas with deep snow, which was nearly impossible a few decades ago. This is mainly due to alterations, enhancements, and additions of original trail model designs such as weight, weight distribution, track length, paddle depth, and power. Technology and design advances in mountain snowmobiles have skyrocketed since 2003 with Ski-Doo's introduction of the "REV" framework platform. Since then, all mountain snowmobile manufacturers have increased performance drastically. Most 2-stroke mountain snowmobiles have a top engine size of 800 cc's producing around 150 hp, although some 1000 cc factory machines have been produced. These may not be as popular as many 800 cc models outperform them due to weight and an increase of unneeded power.