Quote:
Originally Posted by DarkSunrise
The G35 coupe and sedan are a LOT closer in terms of "major component groups" than the BRZ and Impreza. It's not really a close comparison. All of the major components from the engine to suspension to interior are direct swaps in a G35 coupe and sedan, whereas virtually nothing would be a direct swap in the major component groups of a BRZ and Impreza. It's really a bad comparison and I'll just leave it at that.
|
Analogy fails me sometimes, I guess. There is a line between oversimplification and too much detail. Primary point is that the BRZ and Impreza are the same chassis architecture and share many components. The BRZ is directly based on the Impreza. The Nissan FM example is to demonstrate the range of what shared chassis architecture entails. It covers the 350Z all the way to the FX45. All the same platform. The BRZ and Impreza are far closer to each other than the Z and FX. The G coupe/sedan is to emphasize the sharing in a more obvious way than the Z/FX.
You cannot 'prove' a chassis is different because, for example, an FA20 cannot swap into an AWD Impreza. Why? Because the differences are part of the modular aspect, and there are less critical/expensive parts to allow for easy changes. As an example, you cannot take a 1JZGTE from a TT Mk3 Supra and directly swap it into a 7MGTE Mk3 Supra. They are different engines and require different engine mounts, bell housing, piping layout, etc... But they are the exact same chassis, let alone shared platforms. The same types of changes allow for differences within a platform with minimal engineering changes because the flexibility is designed in.
Does this show what I'm talking about a bit better? Chassis sharing isn't disproved by 'this one or two parts do not fit' arguments. The G example was perhaps an oversimplification failure on my part.