New Video | 40 Minutes Uncut: E2E Autonomous Driving on a Mountain Pass — 48 Hairpin Turns on Nikko’s Irohazaka

2026.10.28

Watch the video: https://youtu.be/ow28ujZMd5k?si=7ZH57mFOGslKxY_Y

We took Turing’s E2E autonomous driving to Irohazaka in Nikko.

The uphill Second Irohazaka has 20 numbered curves, and the downhill First Irohazaka has 28. The car drives itself up one and down the other, through all 48. Along the way, we encountered a fallen tree ahead, Nikko’s monkeys crossing the road, and a cyclist in a tunnel.

Turing’s autonomous driving AI learns to drive from data recorded by professional drivers. In the video, we talk about the work of collecting the driving data that sets the example for the AI, the roots of a driving style that keeps passengers from getting carsick, and what it’s like to work right alongside the engineers.

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0:00 Highlights
0:58 Opening / After central Tokyo, a mountain pass
1:52 Irohazaka and its 48 curves
3:01 Already driving itself
3:41 What a data collection driver does
5:02 What matters most: driving that doesn’t make people carsick
6:27 Fallen tree ahead — avoided early
6:43 Up the Second Irohazaka
7:31 Cornering through a pro’s eyes
8:27 Nikko’s monkeys crossing the road
9:49 The roots of “no-sway” driving
13:54 Why Turing?
15:30 Driving that sets the example for AI
16:47 The “human touch” a professional driver noticed
18:43 A cyclist in the tunnel
19:06 Meet the driver team
20:56 Who this job is for
23:08 Working right alongside engineers
23:54 Down the First Irohazaka
24:32 What it takes: high standards and flexibility
27:04 Your driving makes the AI smarter
30:29 Still plenty to do
31:45 Expanding to more vehicles and more places
34:03 Progress that surprises even the people building it
34:42 The day’s only intervention
36:14 Finish / All 48 curves complete
36:59 Reflections on a run with no rehearsal
37:46 Victory lap
38:44 Looking back / We’re hiring drivers
—–

Turing is hiring development drivers to teach AI the right way to drive.
The example you set will shape how well autonomous vehicles drive in the future.

▼Apply to be a Development Driver
https://jobs.tur.ing/en/driver-recruitment/
▼Careers
https://jobs.tur.ing/en/
▼Turipo, our company blog (in Japanese)
https://turipo.tur.ing
▼Events (in Japanese)
https://turing.connpass.com/
▼Tech blog (in Japanese)
https://zenn.dev/p/turing_motors

Note: All driving on public roads is done with a safety driver in the driver’s seat who monitors the surroundings at all times and is ready to take over immediately when needed.