VinFast Updated Our VF8 And Made It Slower!

Published 23, Mar 2026

Out of Spec Testing


Description:
Join Wes as he tests the latest software update (MHU_8A.3.12.0_v6_251015) on the VinFast VF 8, where Sport Mode has been reintroduced and optimized. But instead of getting quicker, the updated VF 8 actually appears to be slower – raising big questions about what changed.

After a quick overview of VinFast’s software history and setup conditions, Wes runs back-to-back tests in Normal and Sport Mode to measure acceleration, throttle response, and overall driving feel. The results point to a surprising outcome: the new update may have reduced performance rather than improved it!

Welcome to Out of Spec Testing!

Rivian Referral Code: KYLE1997381
Tesla Referral Code: https://ts.la/alexander20463

If you have further questions please reach out to us at info@outofspecstudios.com

00:00 - Hello & Welcome
00:42 - VinFast Software & History
02:26 - Setup & Battery Pack Conditions
03:08 - Normal Mode Run
05:49 - Sport Mode Runs
09:33 - Throttle Response & Driving
10:43 - Calculations Corner
16:22 - Conclusion & Wrap-up

#vinfast #vf8 #performance

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