BYD Dolphin I (2021 – 2025)

Reliability score : 8.8/10

The BYD Dolphin (Generation I, project EA1) is a 100% electric compact hatchback (B/C segment) based on the Chinese manufacturer's e-Platform 3.0. Spearheading the "Ocean" range, it stands out for its excellent price-to-equipment ratio, generous interior space, and above all its LFP (Lithium Iron Phosphate) battery technology known as the "Blade Battery", renowned for its high safety and longevity. While the hardware (8-in-1 motor, battery) proves to be very robust, the model suffers from a few early teething problems related to software (intrusive driving aids) and economical equipment choices (original tires that leave room for improvement in the wet). Overall design rating: 8/10 - A formidable technical base, held back by chassis/software tuning heavily oriented towards comfort and the

✅ Strengths

Extremely safe and durable Blade battery technology (LFP) (low degradation).
Energy efficiency in the city and on secondary roads (13-15 kWh/100 km).
Exceptional rear interior space for its size (2.70 m wheelbase).
Abundant standard equipment (Heat pump, electric seats, 360° cameras).
Reassuring manufacturer warranty (6 years/150,000 km vehicle, 8 years/200,000 km battery).

⚠️ Weaknesses

Intrusive, noisy, and sometimes erratic driving aids (ADAS) (traffic sign recognition, lane keeping).
Disappointing fast charging (DC) power compared to the competition (88 kW max on the 60 kWh).
Original tires (Linglong Comfort Master) dangerous on wet roads (loss of grip, extended braking distances).
Very soft damping generating body roll and bouncing on degraded roads.
Ergonomics of the rotating central screen sometimes complex while driving.

🎯 Verdict

The BYD Dolphin is a pragmatic and extremely rational choice for those looking for a reliable, spacious, and economical electric vehicle to run. Its LFP (Blade) battery technology is one of the best on the market in terms of durability, making it an excellent long-term purchase. However, it is aimed at drivers with a smooth driving style: its soft chassis and original tires do not like abruptness. Buying advice: Favor the 60.4 kWh (Comfort or Design) version for its versatility. Imperatively plan a budget of €400 to replace the original tires with quality European rubber right from the purchase, which will positively transform the car's handling and safety.