Uploaded May 2024 | Updated September 2026, 2 days ago

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A four-wheel car needs a differential gear to allow the inside wheel to turn slower in a curve. If you don't use that gear, but you put a motor on each wheel, you need to change speed or power to accommodate turns. Here's a video comparing both. Bonus: I also compared an Ackerman steering setup for the rack steering.

💬 Please like and ask any questions you have in the comments!

--- Links ---
The car uses an LMS-ESP32 to link any Bluetooth gamepad to a SPIKE Prime word block program
👉 antonsmindstorms.com/product/wifi-python-esp32-board-for-mindstorms

Building instructions and code download
👉 antonsmindstorms.com/product/hot-rod-with-spike-prime-pdf-building-instructions

Lap Timer setup
👉 github.com/antonvh/laptimer

Get the T-Shirt 👕 here:
👉 https://shop.spreadshirt.nl/antons-mindstorms/

Support 🙏 my work:
👉 patreon.com/antonsmindstorms

For complete building instructions 📄 and in-depth articles go to:
👉 antonsmindstorms.com


--- Chapters ---
00:00:00 Introduction to different steering options
00:01:00 Lap timer for precisely comparing performances
00:01:31 Third version to compare with Ackerman steering mechanism
00:03:00 Best lap time with Torque Vectoring
00:04:25 Conclusion and possible explanation for the differences
01:02:16 Best lap time with radius and speed calculation
01:03:41 Best lap time with Torque Vectoring and Ackerman Steering