Xiaomi's sub-brand SkyNomad has officially launched with the N70 and N90 extended-range EV (EREV) crossovers.

The brand says the cars won't need an oil change for up to three years, or 30,000 kilometers traveled on their gas engine.

The N70 and N90's gas engine is a 1.5-liter turbocharged four-cylinder unit.

China's Xiaomi has launched its SkyNomad sub-brand. Positioned as a more family-oriented alternative to the very sporty SU7 and YU7, the N90 and the smaller N70 are big, soft, and meant to carry people in comfort. Also, they’re not 100% electric, adding a 1.5-liter turbocharged gas engine that acts as a range extender. That makes Xiaomi’s latest SUVs extended-range EVs, or EREVs as they’re commonly known.

The concept of an EREV has caught on both in and outside of China, promising the benefits of an EV without the range anxiety. But there’s always been a looming question: At their core, EV mechanicals are relatively simple. With the addition of a gas engine and all of its fluid changes and moving parts, will EREV models be more complicated to maintain compared to their full EV counterparts?