In the 1970s and 1980s, the R107 was a favorite base for German tuning companies. Some of these cars are now valuable collector pieces; many more wear bolt-on parts added later. If you are looking at an “AMG” or tuner R107, verification is everything.
What period AMG did
Before AMG became part of Mercedes-Benz, it was an independent tuning company. For the R107, period AMG offerings typically included engine work on the V8s, suspension upgrades, AMG wheels, aerodynamic body parts (front spoilers, side skirts and rear aprons) and interior items such as steering wheels. Customers could order individual parts or a full conversion, so no two cars are exactly alike. AMG did not build R107s as a factory model; they converted cars after they were sold.
Other tuners
- Lorinser: body styling kits, wheels and interior upgrades.
- Koenig Specials: known for dramatic wide-body conversions in the 1980s.
- Brabus: engine and styling conversions on Mercedes models of the period.
- Others, such as smaller regional tuners, offered wheels, spoilers and engine work.
The exact catalog of each tuner for the R107 changed over the years; consult tuner histories and specialist clubs for details.
Tuner body kits
Body kits were usually fiberglass or polyurethane parts bolted or bonded to the original body. Good kits fit well; poor ones crack and trap moisture. Check the original panels underneath for rust and damage.
How to verify authenticity
- Documentation: original invoices from the tuner, period registration documents listing modifications, and correspondence. This is the strongest proof.
- Engine and parts markings: genuine tuner engines and parts often carry the tuner’s markings or part numbers. Compare with known examples.
- Data card and VIN: the data card shows the factory specification; tuner work is in addition to it. See VIN and data card.
- Specialist inspection: tuner clubs and specialists can identify correct parts.
- Period photos: photos of the car from the 1980s with the conversion help.
Badges, wheels and body kits alone prove nothing. Replica parts are easy to buy.
Value effect
A documented, genuine period AMG or tuner car can be worth more than a standard R107, especially with rare engine work. A car with bolt-on replica parts is usually worth less than a clean original car, because many buyers prefer originality. Keep any removed original parts if you change a car.
Quick answers
- Is my car with AMG wheels an AMG? Not necessarily. Wheels are a common later addition.
- Did Mercedes build an R107 AMG? Not as a factory model; AMG converted cars as an independent company.
- Can I fit a period body kit? Yes, but it changes the car’s value and character.
- Who can verify a tuner car? Tuner clubs, specialists and the tuner itself where records survive.
