That’s an outlier. A 5,400 lb Sedan sounds like a personal problem.
Curb weight of some common PHEVs/Hybrids/EVs:
Chevrolet Volt (discontinued) 3,500 lbs
Chevrolet Bolt 3,600 lbs
Toyota Prius Prime 3,500 lbs
Honda Accord Hybrid 3,500 lbs
Toyota Camry Hybrid 3,500 lbs
Toyota Corolla Hybrud...