Plans for a successor to the slow-selling Maybach 57 and 62 sedans appear to have hit a snag, with reports coming out of Germany claiming collaborative talks between Daimler and Aston Martin have collapsed.

Aston Martin, which is planning a flagship sedan for its own Lagonda brand, was looking to share development costs with Maybach and at one point was even reported to be responsible for most of the design work and production.

However, a report by Auto Motor und Sport, which was first picked up by World Car Fans, suggests that Maybach will now handle development of its 57 and 62 successor on its own due to Aston Martin requiring too much initial investment for the project.

What’s not clear is the fate of Aston Martin’s powertrain future. Currently, the luxury British marque procures its V-12 engines from Ford but with production of these units scheduled to end in the near future Aston’s hopes of finding a new supplier is starting to look troubling.

There were reports that the deal with Daimler would provide a handful of new-generation V-8 and V-12 engines from which to choose, however, the latest report leaves that scenario up in the air. 

Also up in the air is the fate of a new SUV model from Lagonda, which was originally meant to ride on a Mercedes-Benz GL platform.

Stay tuned for an update.