For drivers and petrolheads who want dealership-standard work and real performance builds — from one certified master shop.
We tune for the road and build for the track — from a subtle chip remap to a full race setup. Unlimited Auto is a certified master automotive workshop and performance tuning shop in Weiden in der Oberpfalz, Bavaria, run by Kfz-Technikermeister Christian Klein. Klein managed A.T.U. workshops in Munich and Regensburg and has raced, including at the Nürburgring. That means our Tuning & Performance Builds cover Chiptuning & Turboaufladung, lowering through to full race setup, custom Bodykits & Widebody (Breitbaukit) for all brands, and Race Builds & Special Projects. We only fit what we’d drive ourselves. If you want a high-end car tuning workshop that backs its claims with a master title and race miles, you’re in the right place.
Servicing to manufacturer specifications — like the dealership, without the runaround. Regular Kundendienst, oil changes, and complex repairs, all logged to the maker’s schedule.
We repair and restore vehicles of all brands. Accident repair, exhaust repair, and steering and suspension work — brand-agnostic, no dealership restriction on what we’ll touch.
Seasonal tire changes, brake inspection and repair, plus air-conditioning service. The routine work your car needs, done right and done fairly.
Complex faults, decoded. We run full diagnostics and complex repairs so problems get found and fixed the first time, not guessed at.
Chiptuning through to turbocharging, lowering through to full race setup, custom widebody kits and one-off race builds for enthusiasts and performance clients.
We’re a registered and certified Meisterwerkstatt — not a chain, not a bolt-on shop. Unlimited Auto is registered and certified through the Handwerkskammer Regensburg, with Christian Klein holding the Kfz-Technikermeister title. That certification, plus more than 20 years of hands-on experience, is why we service and repair vehicles of all brands to manufacturer specifications. Our automotive workshop handles everything from an oil change to accident repair and chassis work, then keeps going into performance tuning. You get dealership quality without the overhead — honest advice, plain talk, and work we’d stand behind on our own cars. Our equipment is kept current, because a master workshop is only as good as the tools it puts on your car.
Our 1000 PS BMW E36 BiTurbo V12 build is the name Unlimited Auto made physical. We took a 1990s BMW E36, fitted a custom widebody kit (Breitbaukit), and dropped in a BiTurbo V12 engine producing 1000 PS. This is what a Race Build & Special Project looks like when petrol runs in your blood — one-off engineering, not a catalogue kit. It’s our showcase for what the shop can do: if we can build this, we can build what you have in mind. The E36 is why we say we make what’s possible — and more. When you want a high-end car tuning workshop that proves capability instead of promising it, this is the proof parked in the bay.
You get a trusted local master workshop and a serious tuning shop under one roof. Drivers across Weiden in der Oberpfalz and the wider Oberpfalz region come to us for dealership-quality servicing without the dealership overhead. Enthusiasts and the tuning scene come for chiptuning, widebody kits, and race builds from people who genuinely love the work. We build and repair cars because we love them, not just as a job — and it shows in every job that leaves the ramp. Whatever the badge on the bonnet, we service it, tune it, or build it. That combination — certified repair for all brands plus high-end tuning — is why we’re your workshop, from a routine oil change to a 1000 PS build.
Let Unlimited Auto help you achieve your goals.