Toyota Aqua


Debut: 2021
Maker: Toyota
Predecessor: Aqua / Prius C Mk1 (2012)



 Published on 6 Oct 2021
All rights reserved. 


Now no longer the fuel economy champion, what is the selling point of Aqua?


The last generation Aqua, or Prius C in North America, was a dedicated hybrid car aimed at extending the success of Prius to compact car segment. In the beginning, it was quite a hit, capturing 270,000 sales in Japan alone in its first full year of sale and topping the domestic sales chart from 2013 to 2015. However, that strength lasted not too long. Competition from Nissan Note e-Power, Honda Fit Hybrid and Toyota’s own Vitz Hybrid ate into its market share. Meanwhile, low fuel price hurts its attraction in overseas market. Eventually, some 1.87 million cars were built in an unusually long, 9.5 years lifespan, which is not particularly successful by Toyota’s standard.

For the second generation, Toyota decided to keep its sales bounded in Japan. Ambition has been scaled back as well. It is an evolution of the old car, aiming to keep existing customers without expanding to new kinds of buyers, especially younger ones. The exterior styling has been updated, but not quite as radical and sporty as the new Yaris. Built on the TNGA GA-B platform, it is stiffer than the old car. To distance itself from Yaris, both its length and wheelbase have been stretched by 50mm, though it remains the size of a typical B-segment car. Suspension is naturally struts up front and a torsion beam at the rear, the latter is replaced by a double-wishbone setup on 4WD model. BTW, the 4WD gets a rear electric motor with only 6.4hp.



Wheelbase is stretched by 50mm, distancing it further from Yaris.


Inside, the new dashboard doesn’t look as cheap and boring as the last one. Still, it is not one of the best built interiors in the class, blame to using hard plastics all round and the dark monotone color. The instrument is now digital, and you get either a 7in or 10.5in touchscreen on the center console, while some useful physical switches are retained. The longer wheelbase affords 20mm more legroom at the rear, while the cabin is claimed to be 30mm wider. It is more adequate to take a small family than the Yaris.

The powertrain is again a 1.5-liter engine mated with 2-motor hybrid system, but both have been improved. While the old car ran an Atkinson-cycle 4-cylinder, the new one is a 3-cylinder coming from the “Dynamic Force” family with significantly more power: 91hp instead of 74hp. Meanwhile, the propulsion motor generates 80hp instead of the previous 61hp. Combined output is 116hp, up from 100hp. In addition, it adopts a new, “bipolar” type of NiMH battery, whose electrodes have anode on one side and cathode on another side. This increases surface area, lowering resistance and improving power. As it is also more space-saving, more cells can be packed into the same volume. Overall, Toyota claims the bipolar NiMH battery offers double the power output, although its unspecified capacity is believed to be more or less the same as before.

As a result, the new Aqua can use electric power in more situations. EV mode can drive the car up to 40km/h (25mph) instead of the previous 15km/h (9mph). This helps it to improve refinement as well as cutting fuel consumption. Performance is improved, too. Expect 0-60 mph to take less than 9.5 seconds, a second quicker than before.


It seems that Toyota intends to use Yaris to lure younger drivers, leaving those not interested in driving to the Aqua.


Toyota has wealth of experience in hybrid technology, so it is not surprising to find out it blends the two power sources seamlessly with high refinement. The chase for smoothness explains why it does not use regenerative braking as strong as some rivals. Even in the strongest Power+ mode, the regenerative braking force is not strong enough to do one-pedal driving.

Likewise, the car chases comfort at the expense of control. Its suspension setting biases strongly towards comfort, more so than the first generation. It is safe and easy to live with, but loose body control, light steering and lack of feel fail to deliver any driving excitement. It seems that Toyota intends to use Yaris to lure younger drivers, leaving those not interested in driving to the Aqua. The fact that it is no longer on sale in overseas market makes this decision easier.

Problem is, the new Yaris Hybrid runs the same hybrid powertrain and, for the first time, beats Aqua in fuel economy. Now no longer a fuel economy champion, what is the selling point of Aqua?
Verdict: 
Specifications





Year
Layout
Chassis
Body
Length / width / height
Wheelbase
Engine
Capacity
Valve gears
Induction
Other engine features
Max power
Max torque
Transmission
Suspension layout
Suspension features
Tires
Kerb weight
Top speed
0-60 mph (sec)
0-100 mph (sec)
Aqua
2021
Front-engined, FWD
Steel monocoque
Mainly steel
4050 / 1695 / 1485 mm
2600 mm
Inline-3, Atkinson-cycle + e-motor
1490 cc
DOHC 12 valves, DVVT
-
-
91 + 80 = 116 hp
88 + 104 = ? lbft
CVT
F: strut; R: torsion-beam
-
195/55VR16
1130 kg
109 mph (est)
9.4 (est)
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