Why is the SAIC ER6's range overstatement so severe?
4 Answers
SAIC ER6's severe range overstatement refers to its advertised range of 620km, while in the recent CEVR competition, it achieved an actual range of 644km, leading its peers. Introduction to vehicle range: Vehicle range refers to the maximum distance a car can travel at a relatively fuel-efficient speed with the remaining gasoline in its tank. The continuous driving range on certain road conditions with a full tank is generally 300 to 500 kilometers for ordinary vehicles, while military vehicles usually achieve 600 to 800 kilometers. Introduction to R-ER6: The SAIC R-ER6 is the first model under SAIC's new R brand. It can be considered as a mid-term facelift of the Roewe Ei6, or alternatively understood as the pure electric version of the Roewe i6-MAX. Regardless of the model, the ER6 has successfully entered the high-quality compact pure electric family sedan market. Compared to its competitor, the Aion-S, although the ER6's overall price is higher, its configuration is also more advanced, and its range performance is even more outstanding. Its NEDC range of 620km is sufficient to alleviate your range anxiety.
Last time I drove the SAIC Roewe ER6, it claimed a NEDC range of 620 km, but the actual performance was far from that. With air conditioning on during city commutes or in traffic jams, it could only manage around 400 km. In winter, battery efficiency dropped even further, possibly down to 350 km. The exaggerated claims were quite severe—I initially trusted the official data and almost ran out of battery on a long trip without finding a charging station, which was really frustrating. Manufacturers might use ideal testing conditions, like constant temperature and low speed, but in reality, temperature variations and different driving habits significantly reduce the range. Now when choosing an electric vehicle, I only rely on real owner feedback and third-party reviews, such as actual mileage reports shared in online forums. Don’t just believe the advertising hype, or it’ll cost you both your wallet and safety.
As an automotive enthusiast, I've disassembled the ER6's battery system and found that the key issues with range exaggeration lie in testing standards and battery management. NEDC or CLTC test cycles are too idealized, neglecting real-world factors like traffic congestion and air conditioning usage, leading to inflated range claims. Manufacturers may advertise 620 km for competitive marketing, but actual scenarios show faster battery depletion, especially when cooling fans consume extra power during highway driving. Consumer reports indicate the ER6's real-world range averages around 450 km, a significant gap. Technically, I recommend manufacturers optimize battery thermal management systems and adopt more realistic testing standards like WLTP. When choosing vehicles, I always refer to professional testing data from authoritative institutions.
As a newcomer to the car community, I'm quite confused about the ER6's exaggerated range claims. After some research, I heard many people complain that the actual range is over 100km less than advertised - for example, only getting just over 400km in city driving with AC on during summer. As a beginner who doesn't understand technical details, I think it's better not to just rely on official numbers when buying a car. It's wiser to ask experienced owners or test drive for a day to measure the actual range. The exaggerated claims might come from testing loopholes, but newer models like the ID series are much more accurate now. For beginners, choosing cars with good reputations is safer.
