Porsche Motorsport obviously already works with race teams and other independent third parties, and the contract stipulates that the “the new collaboration focuses exclusively on the assembly of remanufactured engines”. A statement from Singer confirms: “The characteristics of the engines – very much at the core of every Singer car – will continue to be defined by Singer's specification.”
The contract does not include engines for the DLS cars – those are assembled in the UK – but could include not just existing versions of the naturally aspirated flat six, but forthcoming versions, presumably including Singer’s long-rumoured turbocharged engine.
All engines will be assembled at Porsche Motorsport’s North America headquarters, located within the Porsche Experience Centre in Los Angeles.
Looking more broadly, Porsche does not make a move like this without reason. It understands how this will be perceived. Expect this to the be the first step on a tentative path to further collaborations between the two companies...