First, I took my 5T 1500W Leaf for its first ride tonight. Big, fat, huge grin. First time I touched the throttle, the front end came up (yes). Max speed is exactly what the numbers from this thread and the simulator indicate it should be (~50 volts [with drop]/flats/no wind/300 lbs up to low 30's [mph] before I felt it stop pulling). As you can see from the pic I have some buttoning up to do. Yes, I rode it like that. (There's a 'before' pic a few pages back but it doesn't look much different.) No videos taken, but...just watch any video in this thread and imagine the speedo indicating 32.5 mph, and there you have it!!
I chose the 5T because I have no desire to go 40+ mph on a bicycle (I have a motorcycle). Plus, I'm commuting on back roads (slower speeds, wide speed fluctuations, intersections, rough patches) and through some city traffic near the end. The 5T will be more efficient (and suited) for this (as stated already). It's sort of like choosing a gear to be stuck in. Between 3rd and 4th, I chose 3rd.