It's been a few weeks since I posted but I'm back! I had to respond to this one as I've just got an Insight myself... :)


Obviously, I'm gonna say it's great because I bought one but honestly I don't know where this CR lot are coming from. I came from an Accord that I'd modified with sports suspension that I used on track days and at the Nurburgring and I was pleasantly surprised by how good the Insight is at cornering. It does roll with the punches a bit but it also holds the line quite well.
The extra torque from the IMA electric motor gives it diesel rivaling starting acceleration in city driving (much more than you'd expect from its 1.3L petrol engine) and in all but full throttle use it is very quiet - the engine turns over at an incredibly low 1,600RPM at 55mph.
Contrary to EPA figures, after two full to empty tanks of gas I've recorded an average of 61 mpg (51mpg for US gallons). These are real world figures made by dividing the odometer reading by the volume of gas pumped at refills. On the last 330 mile business trip I took in the Insight I saw a on-board computer average over 100 miles of 74mpg and a trip average of 71mpg (UK gallons).
Performance is largely the same between the Prius and the Insight because while the Prius has more power (it uses a 1.8L engine to the 1.3L in the Insight), the Insight weighs less. But then you're not going to be pushing the performance envelope on either car - are you?
I bought the Insight over the Civic hybrid because the Civic has the batteries in the rear seat back which means the seats can't fold down. This severely limits the luggage capability of the Civic whereas the Insight seats are 60:40 split and both go down flat to accommodate large loads... Here's a 160x79cm BP 3160S solar panel in the back of my Insight.

Talk of the Prius having "superior" technology is irrelevant. They are just different. The Prius is a true hybrid with a complicated dual drive system. The Insight is a regular petrol car with a much more simple KERS (Kinetic Energy Recovery System), similar to those used in some 2009 F1 cars. The small 100V NiMH battery and 10kW motor in the Insight are used to store captured kinetic energy and use it to boost HP and torque when required to allow the use of an otherwise undersized petrol engine. It is primarily recharged by regenerative braking from the permanently paralleled electric motor (bolted on to the engine flywheel) when braking or coasting down hills. It also used for starting the engine (in stop-start traffic) and replaces the alternator on a regular petrol engine, charging the 100V battery and a small 12V battery (for the lights, computers and radio).
It can operate in a limited EV mode. I drove to my parents house and there is a long section of road that is flat or gently down-hill most of the way with traffic lights here and there and 30mph speed cameras. So, gently drving at 28-30mph, I noticed that the car (from it's power source display) was using petrol to accelerate to cruising speed and then switching to electric only to cruise. When braking for the next set of lights, it recouped part of the energy to charge the battery for the next stint.
The Prius can cruise round a car park in true EV mode but the Insight can't. Would have been a nice to have but what percentage of your driving hours are spent cruising around a car park?
The US market gets different models (trim levels) to the UK and Europe. I bought the middle version in the UK (the ES). Here they only sell the SE, ES and ES-T. There is a S model (which is the very basic model that does not include VSA traction control, maybe as per the US LX model) but they aren't promoting it here as it's
too basic for most buyers.