Märklin Sprint still running smooth after more than 50 years in 2024. This is set 1406:

Marklin Sprint 1410 set

This is the rare Marklin Sprint 1410 set. Cars are Porsches 911 in ocre and red. These colour variants were only available in this set:

https://www.youtube.com/watch?v=yuYjJ_dMlhA

Marklin Ferrari 1301

The motor of this car didn´t work. I had to rewire it. A lot of parts were missing: driver, tyres, guide, exaust and exhaust protection. After the usual cleaning the car is good as new. After more than 30 years is back on the tracks.

Marklin Sprint 6 lane track

http://www.youtube.com/watch?v=bY5dP2GZkTE

Marklin Sprint 1400

The Mercedes and Ferrari after restoration running again:

Marklin Porsche Polizei 1318

This one was in good shape except for the decals and tyres:

Here you can see the rear mechanism that makes the police light flash:

Marklin Porsche 1325

The usual dirt in the wheels:

Car body after removing the remains of the old decals:

Old car, new decals:

Old tyres - new tyres: