Optical Tuning & Widebody Kits
Custom optical tuning & widebody kits in Weiden
Custom widebody kits for all brands
We build unique bodykits for vehicles of all brands — not off-the-shelf parts bolted on. At Unlimited Auto, our certified KFZ-Meisterwerkstatt in Weiden in der Oberpfalz, Bavaria, we design and fabricate the look you want, tailored to your car. Christian Klein holds the Kfz-Technikermeister title and the workshop is certified through the Handwerkskammer Regensburg, so the finish holds up to close inspection. From subtle to aggressive Breitbaukit builds, we treat bodywork as engineering, not decoration. The name Unlimited Auto is the programme: we make what’s possible — and more. Tell us the vision and we build it properly.
Bespoke Breitbaukit fabrication
A Breitbaukit is bespoke fabrication, not a universal fit. We shape widebody arches and panels to your car’s exact lines, so panel gaps and stance look factory-tight, not aftermarket-loose. Our flagship 1000 PS BMW E36 BiTurbo V12 build wears a custom widebody kit we made in-house — proof of what our fabrication delivers. Petrol runs in our blood, and we only fit what we’d drive ourselves. That standard applies whether you want a full widebody transformation or a single moulded panel. Bring us the brief; we’ll tell you honestly what works on your platform before a single cut is made.
Bodywork that performs, not just looks
Wide arches aren’t just for show — they let you run wider track and bigger rubber, which changes how the car sits and grips. Christian Klein has competed in racing series including at the Nürburgring, so our bodywork decisions come from the track, not a catalogue. We think about clearance, airflow and fitment alongside the aesthetic. That’s the difference between our Tuning & Performance Builds and sticker tuning. Our workshop equipment is current, and every widebody build is measured, aligned and finished to dealership quality — without the dealership overhead. You get a car that looks right and behaves right at speed.
What is optical car tuning?
Optical tuning changes how your car looks — bodykits, widebody arches, lowering and stance — without necessarily touching the engine. We handle the full palette: unique bodykits for all brands, Breitbaukit fabrication, and lowering from mild drops through to full race setup. Because we’re a certified master workshop, optical work sits alongside proper service and repair under one roof. That matters: a lowered car needs correct chassis and suspension work, and a widebody needs alignment checked. We do both. Optical tuning at Unlimited Auto is finished to the same standard as everything else we build in Weiden in der Oberpfalz.
The difference between optical and performance tuning
Optical tuning changes the look; performance tuning changes the power. We do both, and often together. Chiptuning bis Turboaufladung — chip tuning through to forced induction — is how we make cars faster. Widebody kits, lowering and bodykits are how we make them look the part. The 1000 PS BMW E36 BiTurbo V12 build is both at once: a custom widebody wrapped around a fully engineered engine. You don’t have to choose. Many builds start optical and grow into performance, or the other way round. We plan the whole thing so the parts work together instead of fighting each other.
Optical tuning body modifications for BMW and beyond
BMW is where our showcase lives — the 1000 PS BMW E36 with its custom widebody and BiTurbo V12 — but we build for vehicles of all brands. Our bodywork is brand-agnostic: whatever platform you drive, we fabricate arches, panels and kits to suit it. We’re not a bolt-on shop working from one catalogue. Every build is designed for the specific car in front of us. Whether it’s a BMW, a hot hatch or something rarer, bring it to Unlimited Auto in Weiden in der Oberpfalz. We’ll scope the modification honestly and build only what we’d be proud to drive ourselves.