Background
It's rare these days to come across a citycar, the smallest breed of compact hatch, that isn't an EV. But the Toyota Aygo X has been an exception since its launch back in 2022. Back then, most other major brands were declaring the citycar segment unprofitable, but Toyota has proved them wrong with this model, shifting over 300,000 units since the original launch, 14,000 of those in the UK in 2024.
The Aygo X's achilles heel has always been its ancient and rather feeble 1.0-litre petrol engine, the origins of which date back to the turn of the century. And because of the relative inefficiency of that unit, Toyota hasn't been getting the ZEV EV mandate benefit from all those Aygo X sales that it might have had. Hence the decision with this rejuvenated model to switch to the 1.5-litre full-Hybrid powerplant from the Yaris supermini. That's clearly a better engine, but it also makes this Aygo X a more expensive car. Do the sums add up? Let's take a closer look.
Engines and Tech Spec
Toyota has never made a citycar with an engine anything like this big. Yet at the same time, this is the smallest Hybrid model the brand has ever made and the smallest full-Hybrid car on sale in the UK. The engine is the same 114bhp 1.5-litre four cylinder petrol electric unit familiar from larger Yaris and Yaris Cross models, though has had to be slightly adapted to suit the Aygo X's tighter packaging.
That total output figure is a huge 43bhp more than the old 1.0-litre three cylinder engine could muster. And, even more significantly, pulling power has risen from just 93Nm with that old unit to 144Nm with the Hybrid. Not surprisingly, that makes this electrified Aygo X a lot quicker off the mark, able to reach 62mph in around 10s - a huge 4.9s improvement on the old car. What some might find more difficult to get used to is that the old models five-speed manual gearbox has been replaced by the company's e-CVT automatic transmission; you now have to have an auto.
Not having the old three cylinder engine straining away all the time will obviously reduce your travelling din and Toyota says it has re-worked the exhaust and added extra sound deadening around the dashboard and under the bonnet to improve refinement. High-spec models get even more soundproofing and thicker window glass.
Design and Build
If you're wondering, as we did, why Toyota didn't just equip this Aygo X with its Yaris-derived Hybrid engine from the start, the answer is that building in this larger four cylinder unit required a complete front-end redesign. Which is what we've now got with this updated model, which consequently has had its nose stretched by 76mm. At the same time, Toyota has taken the opportunity to redesign the headlamps, bonnet and grille, giving the car a wider, more imposing stance. It's still a dinky little thing though, 3,776mm long and 1,740mm wide. There are also redesigned 17 or 18-inch wheels and, as before, you can have a two-tone colour scheme and there's the option of a canvas folding roof.
The changes inside aren't quite as extensive. The original model's analogue dials make way for a small 7-inch digital instrument screen. Plus a pair of USB-C ports have been added below the climate control panel. An infra red sensor now sits on the steering rack (for the added attention monitoring system) and there are updated steering wheel buttons too.
In the back, thanks to the diminutive 2,430mm wheelbase length, it's the same as before, which means there isn't much space and just two adults are provided for. At least it's no worse than before, despite the fact that two stacks of battery cells for the Hybrid system are positioned alongside each other underneath the rear bench.
Boot space is also the same as before, rated at 231-litres (well down on a rival Hyundai i10's 252-litre figure). Now though, there's the downside that because of the Hybrid powertrain's auxiliary battery positioning underneath the load area floor, you no longer get the option of a space saver spare wheel.
Market and Model
Price is the elephant in the room here. At the time of this Hybrid model's introduction in Summer 2025, the old 1.0-litre Aygo X was selling from around £17,000. You can expect the Aygo X Hybrid to cost from around £19,000 - and for well over £20,000 if you want a variant trimmed as you'd probably like. That's quite a lot of money, but if you're purchasing by lease or PCP deals, the increase might not seem so substantial, helped by quite strong residuals that help to soften the effect of the up-front price increase.
Toyota points out that there's a bit more equipment with this Hybrid model too, including the 7-inch digital instrument screen, the cabin's extra pair of USB-C ports and the addition of a driver attention monitoring system. You might also like the freshly styled 17 and 18-inch alloy wheels that feature across the range.
At the top of the line-up, Toyota has added a flagship 'GR Sport' trim level, which it says has been developed in cooperation with its Gazoo Racing Performance division. This doesn't mean a higher engine output, but it does mean a more dynamic look, with a unique grille, GR Sport-specific 18-inch alloy wheels, GR-branded seats and a bespoke suspension tune that tweaks the springs and dampers, plus there's sharper steering.
Every models gets all the key features of 'Toyota Safety Sense' package. This includes Adaptive Cruise Control, Road Sign Assist, Auto High Beam, Emergency Steering Assist and a Pre-Collision System with Cyclist and Pedestrian detection.
Cost of Ownership
You'd want a car of this kind to be economical and sure enough, in Hybrid form the Aygo X should be able to deliver a combined cycle fuel economy figure getting on for 70mpg. Which is a huge improvement over the 56.5mpg figure of the original 1.0-litre Aygo X when fitted with comparable automatic transmission. As you'd expect, the Aygo X Hybrid is also a lot cleaner than the original, with emissions at around 86g/km of CO2; compare to the 109g/km figure of the 1.0-litre auto model.
On the downside, you will need to pay more to insure this Hybrid version. But you can console yourself by remembering that in this electrified form, this Aygo X's carbon footprint has shrunk by as much as 80% over its predecessor, thanks to a mix of green and low-impact materials and a cleaner production facility, all of it contributing to a huge reduction in lifetime CO2.
A key advantage of choosing a Toyota in this segment is that you get a warranty which you can extend up to as much as 10 years if you annually get your car properly serviced at a franchised Toyota dealer. As before, Aygo X buyers get five years of pan-European roadside breakdown assistance, a three year paint warranty and twelve years of anti-perforation cover. There's a dedicated 'My Toyota' website that allows you to book a service online and Toyota has a 'Fixed Price Servicing' plan, so you'll know in advance exactly how much any work will cost before you check into a dealer. You could also take advantage of the optional pre-paid 'Service Plan' that that dealer will offer at point of purchase, this enabling owners to cover the cost of routine maintenance with monthly or one-off payments in advance.