Dealer profile and featured Classics for HK-Engineering

The only company worldwide dedicated solely to the restoration of the exclusively valuable Mercedes-Benz 300 SL. Serving for the past 25 years with intelligence, dedication and enthusiasm.

Entrepreneur, director and world-renowned expert in the automotive icon with the trademark star, is Hans Kleissl. Hardly anyone else has such a wealth of knowledge, experience, and passion. Being a classic car enthusiast and collector himself led to his founding of HK-ENGINEERING. „He's one of us,” is the common opinion among his customers.

HK-ENGINEERING is set in a lovingly restored monastery in the Bavarian village of Polling, with an additional branch in the Berlin Classic Remise. Further partners and representatives are located outside of German borders, listed in detail under the heading „Contact.“

HK-ENGINEERING is well-established. Throughout years of service in Kleissl's SL workshop, mechanical engineers have made technical contributions to the sustainable conservation of this unique Mercedes model series. As a result, while it previously took at least a year to bring a Gullwing or Roadster back to its original glory, the mechanics in Polling can now finish an entire „resurrection” of a 300 SL in only six to nine months.

HK-ENGINEERING offers its clients restoration of nearly all original parts: from refurbishing old leathers to matching original body paint. Of course, they are also able to restore classic Mercedes-Benz cars from the ground-up.

Since 1995, HK-ENGINEERING has operated its own racing team. To date they've built a dozen SLS-type cars. „While others speak of their great technical competence, we prove ours on the track,“ boasts Hans Kleissl.

Aside from the vast technical expertise, Kleissl is deeply involved in the social aspect of the 300 SL series. He has served on the board of directors for the 300 SL club of Germany for more than ten years.

More than fifty 300 SL automobiles are currently in the Polling establishment. To meet the ever-growing demand, the team of HK-ENGINEERING has grown to more than forty employees.

All featured Classics from HK-Engineering

This beautiful 220 convertible A was first delivered to its owner in the USA in 1951. The color combination dark green with beige leather and [...]
Here you have the possibility to purchase one of the first built 300 SEL 6.3 V8. The 300 SEL 6.3 was at this time the fastest series sedan in the [...]
This 911er was delivered on 12.05.1967 to the first owner to Texas USA. In January 1979 it was sold to the 2nd owner to Tallahassee. Until 2015, [...]
Here we offer you one of the first 1000 Porsche 911s ever built. This vehicle is a rare German first delivery, which took place on March 31, 1965 [...]
The top model of the W 109 series with the comfortable air suspension and the powerful 6.3 L engine. This vehicle was first delivered to the USA [...]
This beautiful Mercedes-Benz 300S Convertible built in 1952 is one of only 203 pieces ever made. It was originally delivered to USA in 1953 in [...]
This Mercedes-Benz 300 SL Coupé in silver combined with blue checkered cloth seats was delivered on November 23, 1955 to the Mercedes-Benz branch [...]
We offer a very original 1953 Lancia Aurelia B20 2500 GT from the 3rd series in beautiful dark red combined with beige fabric seats. This elegant [...]
This beautiful 220S Ponton coupé was delivered to its first owner by the company Lueg in Bochum in April 1957. Only 1,251 Ponton coupes were [...]
Here we offer a beautiful 280 SE Coupe in excellent condition. The vehicle was delivered in Kiel in 1970 and remained to this day in Germany. It [...]
We offer one of 300 pieces of the Bentley Continental GT3-R in the best color combination Beluge Trim (black) with Alcantara seats in beluga [...]
Here we offer you a very rare McLaren 650S Coupe LeMans Edition. The 650S Le Mans is limited to 50 copies and has only been offered as a coupe. A [...]
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