After reading the other posting concerning 400 or 650 I'm still undecided which way to go. This will also be my first scooter/motorcyle. I plan on using it for making a short commute to work and driving around town about 50% of the time. The rest of my driving will be highway 75-80 mph with up to 300 miles a day. I will only be riding with a passenger about 10% of the time and that will probably be a mix of highway and two lane roads. I can afford the 650, but the 400 will be a lot easier on the pocket book and since this is my first bike I'm not really sure if I want to take the big plunge with the 650 or get my feet wet with the 400. I was quoted $6,200 for the 400 and $8,300 for the 650, out the door. My biggest concern is getting on the express way with two people and not being able to do highway speeds. Any advice would be greatly appreciated.