Excellent, now we're getting somewhere;
So the ED30 has different;
Engine:
Pistons
Rods
Compression ratio
Cylinder head
Turbo (Ko4 Turbo )
Body:
All the lower skirts / bumpers are colour coded
Side skirts - Colour coded (shape different ?)
Front Bumper ? (what's the difference here (extra lip) ?)
Front splitter - bigger
Rear Bumper - Colour coded (is shape different?)
Rear lights - darkened (Otherwise identical lighting arrangement?)
Side stripes ? Is there any difference ?
Wheels;
18" Pescaras are standard
Interior;
Seats - Part leather heated seats (red stitching?)
Gear knob - Differences ?
Limited edition with unique build number on plaque
Mats - red stitching
Wheel - red stitching
Please confirm ??'s and add and confirmed differences.
Z
In answer to your question:
Engine: (I don't know about the engine there is debate on this, but consensus says that the following is different to the GTI)
Pistons
Rods
Compression ratio
Cylinder head
Turbo (K04 Turbo )
DV relocated
Body:
All the lower skirts / bumpers are colour coded
Side skirts - Colour coded (shape same)
Front Bumper ? same.
Front splitter - lower valance is slightly different
Rear Bumper - Fully Colour coded with different rear valance to GTI
Rear lights - darkened (same as R32) otherwise identical to GTI
Side stripes ? same as GTI
Wheels;
18" Pescaras are standard (for UK market)
18" Monza II in black with polished rim (for Mainland Europe Market)
Interior;
Seats - Part leather heated seats with red stitching and interlagos (tartan style trim) + electric lumbar support.
Gear knob - red stitching (and has golf ball motif)
Limited edition with unique build number on plaque (if requested from VW)
Mats - red stitching
Wheel - red stitching