Husqvarna has included an all-wheel drive feature on its R322T riding mower and added dual exhaust to its 2013 LS lawn-tractor line and its SpeedZTR 48 SE riding mowers. Automotive features are increasingly being seen on riding mowers and lawn tractors, including pieces from Simplicity. The company makes use of a 27-horsepower, EFM V-Twin engine from Briggs & Stratton and adds front and rear springs and shocks on some models.