BYD and DJI have jointly developed the 'Lingyuan' drone launch system that can be mounted on the roof of a car.

Chinese EV manufacturer BYD has announced the launch of the Lingyuan , an in-vehicle drone launch system jointly developed with drone manufacturer DJI. At the time of writing, the Lingyuan is only available in China, and is priced at 16,000 yuan (approximately 327,000 yen).
BYD, DJI unveil intelligent vehicle-mounted drone system-Xinhua

BYD stirs EV rivalry in China with on-vehicle DJI drone system to spur sales | South China Morning Post
https://www.scmp.com/business/china-evs/article/3300789/byd-stirs-ev-rivalry-china-vehicle-dji-drone-system-spur-sales
BYD cars now have an on-vehicle DJI drone launch platform | The Verge
https://www.theverge.com/news/622963/byd-dji-vehicle-mounted-drone-launcher
Below is the promotional movie for Reitobi.
World's No. 1 EV maker, China's BYD, launches on-vehicle drone system with DJI - YouTube
Tap the control panel inside the car.
Then, the hangar attached to the roof of the car opens. Inside is a DJI drone,

A drone rising from the roof of a car.

And then he took off straight from the moving car.
The drone can take off and land at a maximum speed of 25km/h and can follow a car at a maximum speed of 54km/h, and can return automatically if within 2km of the vehicle.

The control panel app allows you to take videos and photos, and it also appears to have video editing and AI recognition apps.

The Lingyin will be available on all BYD EV models, and BYD describes it as 'an intelligent in-vehicle drone system that transforms a vehicle into a mobile entertainment and exploration platform.'
'BYD and DJI's cooperation goes beyond simply putting drones on cars. We have integrated vehicle and drone technologies in a way that strengthens both,' BYD Chairman Wang Chuanfu was quoted as saying by Chinese newspaper Xinhua.
The South China Morning Post, a Chinese English-language newspaper, said, 'Chinese EV makers are leveraging advanced and intelligent features to attract more customers and overcome price wars in the domestic market. China's traditional automakers not only have to compete with each other, but also with startups and new entrants such as smartphone makers Xiaomi and Huawei.' It pointed out that the emergence of the Lingyun is a result of intensifying competition in China's EV industry.
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