I have the same irritation. I prefer the stop start implementation in some manual non-hybrids I've driven. They stop the engine when you shift to neutral and take your feet off the brake and clutch. When the car is stopped, I like to give my foot a rest.
Having driven both, I think that's the only area where a Prius really outshines an I2 - crawling traffic. Once you're on the move I prefer the Insight.
The best you can do in crawling traffic with the I2 is turn off the climate control (this makes autostop engaging much more likely), leave a slight gap when he car in front moves, then accelerate to 8mph and just touch the brake slightly. With very light pressure, you can keep the car rolling with the engine off for some distance on the flat or a slight downhill
In slightly faster traffic, once you're over about 11mph you should be able to keep the car in EV mode with a very steady right foot over some fair distances too. Don't abuse it though. You only need to use the battery enough to generate capacity for regenerative braking. If you use the motor too much, the car will go into forced regen and that's bad for fuel economy.
2010 Honda Insight ES 1.3 IMA (UK)
Last edited by Uriel; 06-05-2014 at 05:39 PM.