It was apparently last year but having such little history, in a nascent market, the data points couldn't be trusted, yet. However I took a large position in Xpev over NIO for a few reasons.
1) They are not competitors, from a price point perspective. Xpev makes a car by my estimate 90% as good as NIOs and 80% as good as Tesla, but they sell for 50-60% of the cost. Nio is a direct competitor of Tesla. Being a start-up funding/attrition is key and fighting Tesla is capital intensive.
2) Speaking of, Xpev is copying more than innovating, though slilght innovations on the things they copy exist. It's cheaper and faster to copy than it is to innovate. NIO made a bold move adopting a battery swap format. It could work in time but that's the problem, in time. It's a capital intensive and geographically disadvantaged strategy to build swap stations, though it's innovative and clever to offer cars at sale prices minus the battery, and leasing the battery to the customer. I like that recurring revenue and lower entry point potential, but again it's a battle of attrition and NIOs strategy is so capital intensive that even it's short term prospects are murky. Xpev is simple. Simple i like.
3) As you can see in the chart this is playing out on the balance sheet and revenue. Xpev from a unit sales perspective has been catching up to NIO, I attribute much of that to their price point and marketing. But also from a balance sheet perspective they are burning less cash so while margins are lower per unit sold, their capex is also lower compared to NIO to balance that out in favor of XPEV.
4) Bonus reason, XPEV is focused. Mainly China/Asia customer base with no plans to expand to NA. Currently testing select parts of Europe. Again, simple is good. Transport logistics, local regulations, taxes/tariffs all create levels of complexity, complexity increases cost an lowers margins. Simple is good.
I see XPEV out performing NIO throughout 2022. Although I do believe should the overall EV market expand fast enough, NIO will do just fine and a rising tide will certainly float their boat as well.