Yes, while some components are binned based on mfg quality, most key components of race or supercars are not merely differentially binned from the econocars. This is especially true for critical components like the drivetrain, suspension, chassis, etc.
Race and supercar components will have entirely different design, engineering, materials specification, manufacturing, testinng, assembly, and QA processes. Just a gear in the transmission, a piston, body panel, or even the bolts and fasteners will often be as alien from an econocar part as are jet engine parts (in fact, it is not uncommon for racecars to borrow tech from aviation & space technology).
A specific example that I work on is body panels and suspension components, which are just stamped steel for econo-cars, but for race and supercars are highly designed carbon fiber panels or components. They have literally zero in common except for ending up on the same general area of the car. Even when converting an econo-car to a low-level race spec, the new part will be entirely different. E.g., I've made parts for championship-winning pro rally and pro road racing cars. Every single component is stripped off the original frame, and then new parts are designed and built. E.g., when I build a carbon fiber hood, it will look a lot like the original, but in fact, not a single molecule or process will be the same as the original hood, but they might use an original hinge bracket to mount it to the frame.
Source: Worked on racecars, drove several championship wins, own high-performance composites design & fabrication biz that does work for race teams, among other customers.
Race and supercar components will have entirely different design, engineering, materials specification, manufacturing, testinng, assembly, and QA processes. Just a gear in the transmission, a piston, body panel, or even the bolts and fasteners will often be as alien from an econocar part as are jet engine parts (in fact, it is not uncommon for racecars to borrow tech from aviation & space technology).
A specific example that I work on is body panels and suspension components, which are just stamped steel for econo-cars, but for race and supercars are highly designed carbon fiber panels or components. They have literally zero in common except for ending up on the same general area of the car. Even when converting an econo-car to a low-level race spec, the new part will be entirely different. E.g., I've made parts for championship-winning pro rally and pro road racing cars. Every single component is stripped off the original frame, and then new parts are designed and built. E.g., when I build a carbon fiber hood, it will look a lot like the original, but in fact, not a single molecule or process will be the same as the original hood, but they might use an original hinge bracket to mount it to the frame.
Source: Worked on racecars, drove several championship wins, own high-performance composites design & fabrication biz that does work for race teams, among other customers.