Apples and Oranges,yet BOTH are fruit!
As for Saleen "manufacturing" a vehicle,they only built 1,the S-7.Hennessy has built one too.The Venom.
Who has claim to the fastest "production" car?
Bugatti? NO
Porsche? NO
Masserati? NO
Saleen? NO
Nissan GTR? NO
Lamborghini? NO
Hennessey? YES
Tuner,manufacturer,builder...it's all semantics.They all do the same thing.Build fast cars out of other manufacturers cars.
BTW-Hennessey DOES add body panels,etc.
No offense,but....do some more DD.