Citroën C4 X review: can electric efficiency match hybrid performance?

The Citroën C4 X was among the first sedans to offer a full range of powertrains, including thermal, hybrid, and 100% electric versions. As part of this long-term test, I stepped away from the Hybrid 136/145—which impressed me with its frugality—to get behind the wheel of the 156 hp electric version.

My goal was clear: to see if this 4.60-meter sedan, often overlooked in a market dominated by bulky SUVs, could translate its sleek aerodynamics into genuine real-world range. After a week of intensive driving, the results were more than surprising.

Aerodynamics at the heart of efficiency

At 4.60m long, the C4 X boasts an elegant "fastback" silhouette. This design isn't just about aesthetics; it provides a significant aerodynamic advantage over the standard C4, which is 24cm shorter. This streamlined profile allows it to compensate for its larger size, matching the energy efficiency of its smaller sibling.

Under the hood lies the most capable powertrain in the range: a 156 hp (115 kW) motor paired with a 54 kWh battery (51 kWh usable). Utilizing NMC (Nickel Manganese Cobalt) chemistry, this battery is denser and more efficient than previous versions. While the official WLTP cycle claims up to 420 km (261 miles), I wanted to see how it performed on the highway in chilly conditions.

Real-world consumption: a lesson in efficiency

It is a well-known fact that high-speed highways are an EV's greatest challenge. Yet, the C4 X seems designed to cut through the air with minimal resistance. During my test, conditions were far from ideal, with low temperatures forcing the heat pump to work hard to maintain a cabin temperature of 22°C (72°F).

Driving over 250 km from the Citroën press park to my home at speeds between 120 and 130 km/h (75-80 mph), the trip computer showed a remarkable 15.1 kWh/100 km. To put that into perspective, many competitors in this segment struggle to stay below 19 or 20 kWh in similar conditions. On the final 37 km of the trip, where speeds dropped to between 70 and 110 km/h, consumption fell even further to 13.8 kWh/100 km.

Overall, across 750 km—560 km of which were on the highway—my average consumption settled at 17.1 kWh/100 km. With a 54 kWh battery, this allows for a real-world highway range of approximately 315 km, and significantly more in mixed city driving. For the driver, this means 500 to 600 km trips are easily manageable with just one mid-journey charging stop.

Charging: 80% in just 30 minutes

Efficiency is only half the battle; charging speed is the other pillar of long-distance travel. The ë-C4 X supports up to 100 kW DC fast charging. While this may seem modest compared to expensive 800V architectures, the charging curve is remarkably stable.

I verified this during a fast-charge session, going from 23% to 96% in 52 minutes. The jump from 20% to 80% was achieved in the promised 30 minutes. It is worth noting that charging speeds drop significantly after 80% to protect the battery cells—a standard behavior, but one to keep in mind for optimizing travel times.

"Royal" comfort magnified by silence

Citroën's reputation for comfort is legendary, but the ë-C4 X takes it a step further. The absence of vibration and mechanical noise inherent to electric motors creates a "protective bubble," insulating passengers from the outside world.

The secret lies in the combination of Advanced Comfort seats, with their signature softness, and the Progressive Hydraulic Cushions (suspension with dual hydraulic stops), standard across the range. While the rear axle can feel slightly firm over sharp bumps or potholes, the overall "magic carpet ride" sensation is undeniable. The smoothness of the drive turns every commute into a moment of relaxation.

What I liked:

• Exceptional, "royal" ride comfort.

• Remarkable efficiency, even in cold weather.

• The practicality of a true family sedan.

What I liked less:

• The interior is somewhat dark (predominantly black materials).

• Limited vertical visibility due to the short windshield height.

Verdict: electricity suits it perfectly

While the C4 X Hybrid convinced me of its versatility, this electric version takes it to the next level. It proves that a vehicle's efficiency depends as much on its shape and energy management as it does on battery size. With consumption figures dropping as low as 12.8 kWh/100 km on some urban routes, it stands as one of the most efficient sedans in its class.

User Experience Summary

• Highway Consumption (130 km/h) : 17.1 kWh / 100 km

• Suburban Consumption : 13.8 kWh / 100 km

• Real-World Highway Range : ~ 315 km (195 miles)

• Fast Charge (23% to 96%) : 52 minutes