VW says that the Alfa Romeo brand under its umbrella would get to share a new engine being developed by Porsche.

Well, the...urination...contest between Ferdinand Piech, Chairman of Volkswagen AG, and Fiat-Chrysler CEO Sergio Marchionne continues amid a new bid by the VW Group to get its hands on Alfa Romeo.

This time, VW is offering a little incentive (to whom, we're not sure) in proposing that the Alfa brand under the VW Group umbrella would get to share engines with Porsche.

Specifically, a new flat-four-cylinder engine that Porsche is developing for an entry-level roadster that will be slated beneath the Boxster in the model lineup.

But a Fiat Group spokesperson said to Autocar, "We shut the door in their [VW's] faces and now they're trying to get in the window."

Only a few weeks ago, Piech said in a speech at the opening of the Geneva auto show that VW could quadruple Alfa Romeo's annual sales to 400,000 units within 5 years if they could buy it.

Sergio Marchionne and the Fiat Group as a whole have consistently said that Alfa Romeo is not for sale. Fiat is even planning to bring the brand to the North American market in the coming years.

But Piech won't give up.

"Volkswagen has time," he says.

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