2026 Mercedes: Comparison & Mass Analysis

The new Mercedes W17 DOES have sidepods - and keeps W16’s front and rear push-rod suspension layout.

The size reduction is striking: Mercedes’ wheelbase is over 30 cm shorter than in 2021, yet the car is 18 kg heavier!

DO NOT read on unless you're a nerd!

If a 2021 F1 car were simply scaled down to a 2026-style wheelbase, its mass would be:
752 × (3400 / 3724)³ = 572.3 kg
(since volume - and mass - scale with the cube of length).

Yet the 2026 car is almost 200 kg heavier than that! Why?

- F1 cars have very low “effective density”: much of the mass sits in components (e.g. PU) that don’t shrink when the car gets shorter.

- Some parts got HEAVIER, most notably the jump from 13″ to 18″ wheels.

A more conservative way to estimate the ‘expected’ mass is:
Wheelbase 3724mm → 3400mm
Track 2000mm → 1900mm
Same height

752*(3400/3724)*(1900/2000)=652.2kg, or still ~120kg less than the 2026 mandated minimum