wannabeeahack wrote:
So if you ONLY used the hybrid for town/local work how long would it run before it had to start the petrol engine to charge the battery?
the 70+ mpg figures, they include ALL mileages? whats it do when the petrol engine runs, which i assume it must do at 70mph on a long run....
the average mpg (inc leccy runs) on spirit monitor is 68mpg
and are the batteries on a separate lease? whats the replacement cost for the battery pack?
The Auris/Prius are electrically assisted petrol vehicles, not electric vehicles (except the fully electric prius).
They are basically the same but with differences, the Prius goes further on battery and is more efficient overall than the Auris.
On the Auris a full battery will give you around 3/4mile at 40mph on level ground if it's a straight run with no stop/starts. BUT, the engine only kicks in when there's not enough charge in the battery or extra power is needed (pulling away from standstill or going up a hill) and any time the foot is taken off the accelerator or the brakes are used it uses regeneration to top up the battery, I can drive 10 miles round town and the only time the engine runs is when pulling away, all the charging is done through regeneration.
There are two sets of average mpgs, one shows the current mpg which is constantly changing depending on engine load and the other is the overall mpg from when the counter was reset - so reset every day and you get that days mpg, don't reset for a week and it averages for that week.
Any speed above 42mph (Auris) and the engine runs continuously whilst your foots on the accelerator, take your foot off the pedal and the petrols shut off. This means around 56mpg at 70 on the motorway, but if you drop to 60mph it goes up to 75mpg.
If you had to replace the entire battery pack it costs around £800 - but the batteries are covered by the initial 5 year/100k warranty and then with an annual check (£25) for up to 12 years. BUT, the batteries now consist of seperate cells which can be replaced for £30 each should they fail. The battery packs are designed for the life of the vehicle and failures are rare.
The expensive parts on a hybrid are ;
Complete battery £800 (lifetime part, rarely fail, individual cells replaced for £30)
Inverter £600 (lifetime part, very rare to fail.)
Transaxle (gearbox/transmission) £1500 (lifetime part, only about 3 known failures)
Electric motors £500 (lifetime part, NO failures since original Prius)
Compare this to the Mondeo that needed a new clutch/flywheel every 18 months and cost £600 and it stacks up well.