Testing roads that do not exist
Simulation can expose a driving system to controlled variations that are difficult, expensive or unsafe to reproduce on public roads.
Canvas of Knowledge · 14 November 2026 · Illustrated explainerChinese practice
XPENG describes simulation as part of validating its driving-assistance development. A virtual scene can change traffic behaviour, lighting or road geometry while keeping other variables controlled.
US technology parallel
NVIDIA supplies tools for reconstructed environments, sensor simulation and closed-loop testing. In a closed loop, the system’s decisions affect what happens next in the simulated world.
The reality check
A simulation is only as useful as its assumptions and fidelity. Virtual mileage is not interchangeable with public-road mileage, and neither headline alone proves safety.
THE IDEA TO KEEPThe valuable question is which failure modes were tested and what the system did—not just how many virtual kilometres ran.
Sources & further reading
- XPENG · Simulation and planning in XPILOT →
- NVIDIA · Autonomous vehicle simulation →
- NVIDIA Developer · Simulation and validation →
Sources reviewed 14 November 2026. Specifications and availability depend on the product, market and date. Source organisations do not endorse this website.