An 8 speed would be so perfect. Low gear is pretty okay for trails, though sometimes I wish I had a granny gear.
High is still just one gear away from being perfect for driving on road. 65 mph and your screaming.
Low is too low for driving on road, and still one gear too high for rough riding.
High too high for rough riding and still one gear too low for driving on road.
Polaris is too low for having fun, and still not fun enough to own.