Cars

Revving up the S58-powered M4 GT3 Engine

Published

7 hours ago

June 23, 2026

BTI Team

The BMW P58 Engine: A Customer’s Ticket to Racing Power

Article Summary

The P58 is BMW Motorsport’s designation for the 3.0-liter twin-turbo straight-six engine in the M4 GT3, boasting a performance rating of up to 590 hp and 516 lb-ft of torque.

Derived from the road-going S58 engine, the P58 features enhancements like a dry-sump oiling system, dual throttle valves, and a modified mounting angle specifically designed for endurance racing.

Interestingly, BMW offers the P58 as a standalone component (part number 05748334245KT) through various outlets, making it accessible to customers with a substantial budget.

Searching for “P58” in a BMW parts catalog reveals a unique opportunity to purchase a brand-new racing engine directly from BMW Motorsport. The P58 powers the BMW M4 GT3 and represents a rare chance for customers to acquire a factory race engine without team affiliation requirements.

With a power output of up to 590 horsepower and 516 lb-ft of torque, the P58 debuted in the M4 GT3 at the Nürburgring Endurance Series in June 2021. It remains the engine of choice for the updated M4 GT3 EVO introduced for the 2025 racing season.

Derived From The S58 Platform

The P58 is not a completely new design but rather an evolution of the S58 engine found in models like the G80 M3 and G82 M4 Competition. Both engines share common elements such as an aluminum block, twin turbochargers, and direct injection.

Enhancements for Racing Performance

BMW M4 GT3 on the track

Significant modifications differentiate the P58 from its road-going counterpart. These include a dry-sump oiling system, dual throttle valves, and a revised engine mounting angle tailored for endurance racing conditions.

BMW highlights the importance of these changes, particularly in ensuring optimal performance and reliability during intense racing scenarios, including endurance events.

The Transition to the P58 Designation

BMW Motorsport adopts the practice of replacing the “S” prefix with “P” for production engines adapted for racing applications. This naming convention signifies the engine’s racing heritage and distinguishes it from its road-going counterpart.

The reintroduction of BMW’s signature straight-six engine layout through the P58 marked a significant milestone for the brand in top-level GT competition. The engine’s success in events like the FIA World Endurance Championship underscores its racing pedigree and performance capabilities.

Unlike typical race engines confined to specific chassis, the P58 is available for separate purchase as a genuine BMW Motorsport racing engine. This accessibility, combined with its performance credentials, positions the P58 as a sought-after component for GT3 racing programs.