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Honda and McLaren team up to produce 300hp V6 outboard with motorsport tuning

2 min read

The McLaren Performance M300 represents something genuinely unusual in the outboard world: a collaboration between an automotive engineering house and one of the most trusted names in marine propulsion. McLaren Engineering, a division of Linamar Corporation with decades of motorsport pedigree, joined forces with Honda Marine to transform Honda's existing 3.6-litre V6 platform into a 300-horsepower outboard aimed squarely at performance-minded boaties.

Honda's reputation in the four-stroke outboard market has been built on efficiency and reliability, while McLaren brings more than half a century of engine-tuning knowledge drawn from Can-Am, IndyCar, and Le Mans campaigns. The partnership targets a genuine gap in Honda's lineup, slotting the M300 between the existing BF250 and BF350 models.

Technically, the M300 begins life as a Honda BF250 and is then substantially reworked by McLaren's engineers. The modifications include a revised camshaft profile, a recalibrated ECU covering ignition mapping and knock control, and high-flow injectors. The goal throughout was to lift mid-range torque and broaden the power band, all without increasing the engine's overall weight.

That weight discipline pays dividends. The M300 tips the scales at roughly the same figure as the BF250 it was derived from, which puts its power-to-weight ratio among the best in the 300-class segment. Honda rates fuel consumption at around 3.5 mpg at cruise on 90-octane fuel, a solid return for an engine intended to move heavier fibreglass hulls and offshore rigs.

Underneath the performance tuning, the M300 carries forward Honda's proven engineering architecture. VTEC variable valve timing, Programmed Fuel Injection, and Honda's Intelligent Shift and Throttle (iST) digital control system all feature, ensuring smooth handling and straightforward integration with compatible helm systems. A dual-channel induction system and two-pass cooling underpin long-term durability, and the engine is backed by Honda's five-year non-declining warranty.

The presentation is a deliberate departure from Honda's standard marine aesthetic. The cowl carries the McLaren Performance logo rather than Honda badging, finished in marine blue with details that reference Bruce McLaren's Kiwi heritage, a nod to both the engineering story behind the project and the history that gives the McLaren name its weight.

Distribution runs exclusively through Honda Marine's authorised dealer network. The M300 will appear on new OEM builds from selected manufacturers starting with the 2025 model year, with dealer orders expected to open shortly after.

For New Zealand boaties shopping in the mid-power range, the M300 offers a combination that has not been available before: Honda's well-earned dependability paired with tuning from an engineering house that made its name at the highest levels of motorsport. A serious piece of kit, and one that brings a welcome dose of racing-bred thinking to the marina.

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