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In progress2011 BMW 535i (F10)

Joker F10

What if BMW Individual and BMW M took the F10 further, for one very particular owner?

An OEM+ grand tourer built around a forged N55 engine program, with a deliberately restrained purple, black and carbon theme.

Integrated, not added

Every change has to look like it belongs on a BMW Individual special-project F10. The standard isn't whether a part fits, but whether it improves the car and integrates with everything around it.

This is the car that started FiveSeriesHQ, so it's documented in enough detail that another enthusiast could understand every decision.

Reliability is the performance build

Instead of bolting a big turbo onto a marginal engine, the power target is treated as a complete engine program: forged rotating assembly, a ported head, a full timing refresh and an S55 oil system for sustained high load.

Fueling is E85 flex-fuel plus a custom direct-port methanol system with one nozzle per cylinder. Final numbers will be dyno-verified, not invented to fit a target.

A restrained Joker

No cartoon graphics, no logos everywhere. Purple, black and carbon carry the design, with green kept to a small accent. Inside, black and violet Alcantara with green stitching, and one deliberate exception: “HA HA HA” embroidered into the headliner.

Gallery

Concept render of a purple BMW F10 with green kidney grille trim
Concept render: purple, black and carbon, with green used sparingly.
Concept render of a black and violet Alcantara interior
Interior concept: black and violet Alcantara with green stitching.

Follow along

Where the build stands

Progress by system, newest first. “Chosen” means picked, not bought yet; “designed” means drawn, not built yet.

Engine

Planning

Forged N55 program with a ported head, timing refresh and S55 oil system. Final numbers will come from a dyno, not a target.

Updates will show up here as work on this part of the build starts.