FACTS AND FIGURES. THE dull but impressive conversation killers that completely define this latest Toyota Prius are nevertheless very appealing to your inner nerd. The most important two you need to know are that it can now manage 25.6kpl and splutter out a mere 89g/km of carbon dioxide. Or 25kpl and 92g/km in the top-spec model on account of the bigger, 17-inch wheels. Even more impressively, the former figures stay exactly the same on the urban cycle thanks to the electric hybrid system.
This all-new Prius is more about evolution, so anyone expecting the sort of giant leap there was between the first and second generation will be disappointed. Everything is generally better, but it uses largely the same kinds of tech to achieve those marketing-friendly figures. So there’s still the basic architecture of a petrol engine, an electric motor and a battery. Optional items such as remote-start air–conditioning combined with solar panels in the roof to keep the ventilation going when you park it up are not available for India, yet.
But don’t think evolution is Toyota code for windows dressing. If there’s a part that could be improved, it has been. The battery voltage has been increased to 650V from 500V, because higher voltage equals fewer amps, which means less heat loss through the cables. The battery has been reduced in size, 90 per cent of the hybrid system is new, there’s even a valve in the exhaust which channels heat more directly back into the engine coolant to make everything reach optimum operating temperature faster.
More obvious news is that the Prius now has a new 1.8-litre engine, which has boosted outright power to 134bhp. Not a figure that will take you to super car league, but the extra oomph makes motorway cruising much more relaxing because the engine isn’t buzzing quite so extravagantly. It also means that fuel economy should be significantly better on longer, higher-speed journeys. Or so goes the theory anyway. We weren’t being careful with the throttle, admittedly, but we only averaged 18.9kpl. This is pretty similar to the current crop of economically minded conventional diesels. And this extra power begs a question- if the Prius is all about fuel economy, why bother tweaking the power levels at all? Compared to the last car, power is up by 24 per cent, but fuel economy is only improved by 10 per cent and emissions by 14 per cent. The latter two figures are heading in the right direction, but it makes you wonder how much better they might have been id Toyota haven’t chased the bhp.
There are now three driving modes, Eco, Power and electric-only EV, and it’s seriously easy to chop between the three- there’s a set of buttons just by the fly-by-wire CVT gear stick. ‘Power’ does just that, and makes the throttle less restrictive so it’s much easier to overtake. It’s no diesel for in-gear punch, but the Prius does at least do overtaking now without feeling like you’re trying to make it explode. As with the last Prius, the electric motor lends a torque-laden hand with accelerative duties and then when you brake, reverses itself, acts as a generator and charges the battery.
The ‘Eco’ mode makes it feel like you’ve got tennis ball lodged under the accelerator, but it does encourage you to be more gentle. The electric-only operation is far too short lived when you drive off at traffic lights in either ‘EV’ or ‘Eco’, so do anything but breathe on the accelerator and the Prius beeps to tell you’re accelerating too hard and reverts back to petrol and electric combination. Strangely, road noise is far too intrusive in the Prius, although wind noise is not quite as bad. Oh, the steering feels dead, but that’s probably not a particular Prius priority. At least the ride is comfortable enough, whether you’re on the 17-inch wheels or the 15s.
Weirdly, for the former, you can’t have the solar roof anyways. Weight and centre of gravity issues apparently. Also, the solar panels don’t take too kindly to Indian weather conditions. Mind you, it’s a mighty expensive option anyway so will probably be limited to the even more rich eco-warriors. What you will get is a head-up display and a generally smart interior-the cabin is seriously practical and the central dash looks good. There’s also the usual smattering of clever and slightly patronizing screens telling you how well, and economically, you’re driving.
Eco warriors with knowledge medals pinned to their hair shirts had started to worry about the whole life costs of the previous Prius, how much damage was being done to the environment in the making and shipping. Toyota is now careful to stress how much of the Prius can be recycled, including 95 per cent of the battery, how it’s using far cleaner energy sources at the factory in Japan and that is now uses quite a few plant-based plastics in the car. There are still worries about where the nickel in the battery comes from, but steel/iron has to the dug out of the ground as well, so ‘normal’ cars are not all that different.
So Prius is good then. It almost makes you feel like you might be helping the environment a little bit just by driving it. The last-gen model had started to lose that feel –good sheen, but with this version the polish returns. Not totally ghilt-free motoring, but closer than ever before.
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