McLaren adds dual MGU‑K indicator to steering wheel as 2026 power units reshape driving style

2026’s power units triple MGU‑K output and drop the MGU‑H, making hybrid energy management central. McLaren’s MCL40 adds a bar that tells drivers when the MGU‑K is delivering or harvesting.

Why it matters:

• Without a visual cue, drivers can waste hybrid power or miss harvesting windows, hurting lap times and tyre wear.
• A clear indicator lets teams fine‑tune strategies, crucial in an era where energy management is a core performance factor.

The details:

• 2026 rules boost MGU‑K to ~360 kW and eliminate the MGU‑H, making lift‑and‑coast the primary way to recover energy.
• McLaren adds a second bar above the gear indicator that slides right when delivering power and left when harvesting; it disappears when the unit is idle.
• The bar contracts as the MGU‑K nears its derating limit, giving drivers a visual warning before output is trimmed.

What's next:

• If drivers find it useful, other teams may adopt similar displays, pushing the FIA toward a standard hybrid‑state read‑out.
• Simulation work will intensify as engineers model optimal harvest zones, turning energy‑flow management into a new discipline of race‑craft.