Hallo
Many details:
Carreras have two sitches beside the Tach for the ignitioncircuits.
A handthrottlepull in the Dashface.
Tach showing 8000/min speedo showing 150 mph.
The body has some additional holes for the electric gas heater in the rear valance, the drysump oiltank ( driverside ) the oilines are going forward to the oilcoolers behind the horngrills. One cooler on each side. The supportbrace under the front light bucket is different for them. The oilines are runing inside the doorsills.
Thed floorpan is different. The front bulkhead and the rear kick panel, the rear bulkheadwall, the inner sills/rockers are also different. Not all carreras came with aluminium doors and hoods.
The lower enginbay sourunding sheetmetall is unboltable to service the engine.
The brakes are 60mm drums or discs with the caliper boltet inside and the disc runing outside like the satelite. ( Audi V8 drivers know them as UFO´s

)
The rear axle has the additional leafspring ( also stock with Super 90 ). Carrera had aluminium rims and hubcaps. ( Not all )
Carreras had mostly the larger fuel tank (60L ) and a slight different toolset ( more tools and some very special )
They had a electric fuelpump ( mount under the tank ) and always 12Volt ( instruments, bulbs, switches )
They had a different rear valance with two straight pipes out and a different rear bumper as well. ( ROW no horns )
They mostly had a steering wheel with wood rim ( 2000 for sure )
Grüse