Race Statistics and Analysis

Road America BoP

Written by

fortythree

Aston Martin remains beyond the edge.
BMW gets low and high speed power gain.
Porsche brought closer.
Old Porsche gets tweak to performance characteristics.

Previous 2026 BoP
Daytona– Sebring – Long Beach– Laguna Seca – Detroit – Watkins Glen

Power to Weight

Aston Martin keeps the best power/weight ever! BMW would be at the previous best case, if it wasn’t was Aston Martin. Ups and downs for the rest. The 2026 Porsche is again brought a little closer to the pack.

All GTP era BoPs. c* indicates IMSA corrected the values pre-event.

Weight

For Porsche and Cadillac there are changes to weight.

Power

Recent power changes for BMW are reversed. the big change is a reduction for last year’s Porsche which is combined with a weight increase.

High Speed Power

Some of that Porsche 2025 power loss is combined with a gain in power at high speed. BMW gains power low down and high up.

High Speed power adjustment introduced from 2024 Daytona BoP test. High Speed power >240kph, except Laguna Seca, Detroit and Long beach from 2025 Laguna Seca onwards (>200kph)

Replenishment Rate

A full 100% energy stop is still 40 seconds.

Main BoP Categories for Reference

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