As the mother of a three year old living on a mini-farm I have been challenged with finding ride-on toys that perform on grass and muddy areas. After reading countless reviews for cars, trucks, tractors, mini-SUVs, etc. I came across the Turf Tractor. It explicitly states that it will run in the grass. Crossing my fingers I placed the order and received the box 6 days before Christmas. On December 23rd my husband and I began the process of putting the tractor together and discovered we were missing the parts box with the screws and plastic clip-on accessories. With fingers crossed we called Peg Perego's 1-800 number, spent less than 10 minutes on the phone with a representative and were told to expect the parts the next day. Christmas Eve the box was delivered as promised and the tractor was ready to go. We plugged in the battery for its mandatory 18 hour charge and anxiously awaited the big day. Our son was thrilled. However, we were more thrilled when the tractor rolled easily over different terrain across the property, tackled tree roots, wet leaves, mud and slight hills. There were only a few times that we needed to give the tractor a little nudge to send it on its way. The battery lasted about 2.5 hours as indicated by the battery life expectancy sheet included with the documentation. Overall this product and the company have left a lasting impression on us. We intend to purchase more products from them as we have a 5 month old who will need his own set of wheels in a few years. If you are looking for a ride-on toy that performs on turf and soil, you need to consider the Turf Tractor.