Porsche engine fitted?

[Bebee]

http://www.carandclassic.co.uk/car/C750713

[StonetheCrows]

Looks standard engine to me.

[restoman]

Steyr Puch engine and says so in the text. Can only see this as being of interest to a museum or similar as they were banned from use on roads in the United Kingdom from 31st March 2003 because of safety concerns.

[ErvinHumes]

I also thought it was slandered engine.