To beliEver- So my Clarity from Day 1, never got the range others report.
-Dan
Range can vary a great deal by driver technique, temp, and road conditions. First, I would say that I am a Hyper Miler in my driving style. I had an original Honda Insite and a Gen 3 Prius, and it was very typical for me to easily exceed EPA stated mileage. When I drive around my own town on city roadways I generally register between 52 and 55 miles "Projected" range but my trips are generally 10 miles or less and I charge after every trip. I use the range display and have my settings in the car set to zero the odometer at every charge so when I start my trip it is zero, and I use the actual mileage and subtract it from the estimated range remaining. This is not super accurate, but I think it is pretty close. The key to getting good around town mileage is using a long coast down when you know there are stop signs ahead. For such a heavy car, the Clarity has a good "glide." To a hyper miler, the glide is how well the car maintains momentum when you coast. There are two ways to cost the Clarity. The first is to use Neutral and the second is to watch the power meter and use light pressure on the throttle so that the car is not using energy but not in regen. As you get closer to the stop, let your foot off for light regen. The trick is to glide as much as possible. Likewise, I watch my traffic signals and the moment I see that the signal is going to change red, I go into glide. I use the paddles only if I started my glide too late to get to a crawl before the light changes.
On the highway, tire pressure, temp, and SPEED are what you need to watch to get decent range. Tires should always be kept at recommended or higher pressures. Do not depend on the tire pressure monitor in the car to tell you that your pressures are low. The tire monitor does not actually check the pressure, it uses the differential between the anit-lock sensors. If a tire is low, it will actually turn at a slightly different speed than the tire on the opposite side of the car. All of your tires can be low and this will not trigger the low tire warning. One has to be off by several pounds from the others. If your temps are not super high, you can run a couple of extra pounds. This will by the way, extend your glide. When it is cold, the air is more dense, so drag is higher, and you are going to use some electricity to heat the car. Best to use the heated seats and avoid turning the heather up to high. Last is speed. At 60 to 65 MPH on average terrain, you should about 45-47. At 70, this is going to drop to about 41 miles, and at 75, you are looking at 38 to 40, depending on temp mostly.
Interestingly, using Hybrid mode, again from my hyper miler days, I can get 85 MPG around town. Driving 60- 65, I can get about 48-52 mpg. Driving 70 will lower this to about 44-46, and driving 75 brings me down to about 38-42.
All cars will take much more power to move at high speed. As with any car made, the best ways to improve highway mileage are to reduce speed, draft if you can do so safely, drive so that touch the brake as seldom as possible. Set the radar cruise to 2 to 3 bars depending on traffic. On interstates between cities, use 4 bars. This will let you modulate your speed to traffic using the buttons on the cruise. The idea is that if you are gaining on the car in front of you, the cruise will brake, and you lose the regen. If you are gaining fast, click on the regen paddle to reduce speed.
Getting better than EPA on the Clarity around town is pretty easy. Getting better than EPA on the highway mostly involves staying around 65 (if traffic permits).