Thank you all for your input. A couple days ago I tried driving my truck where I'd be doing most of my higher speed driving...and you all are right....20-30 MPH seems plenty fast to me! I'm still concerned about how hard it would be on some of the models' engines if i drove them maxed out when going to a neighbors on gravel and blacktop. Husqvarna, Mule, Big Red, RTV 500, and JD xuv625i all have a top speed listed anywhere from 25-30. So far.... I like them all! But I'm leaning toward the Ranger 500, partly because it can go 40+. But I plan on test driving as many as I can and keep doing my research until I finally decide. Thanx again for all your input....aj