Full VW Golf Engine under tray
(x1) 1K0 825 237 P Undertray £26.24
(x3) 1K0 825 951 Hex headed bolt (Combi) 80p each (M6X20 hex socket head bolt)
Rear axle cover as fitted to VW Golf bluemotion
(x1) 1K0 501 713 D Trim for Rear Axle £25.03
(x1) 1K0 501 682 Retaining bracket £1.67
(x1) N 905 483 05 Retaining bolt 47p
(x1) N 901 838 02 Retaining bolt £1.63
Rear arm covers from Audi TT
(x1) 1K0 511 539 E Stone chip Guard £4.69
(x1) 1K0 511 540 C Stone Chip Guard £5.91
(x4) 8E0 825 267 A spreader rivet 10p each
(x2) 1K0 609 734 C brake cable clamp 76p each
(x2) N 102 854 02 Bolt 18p each
Extra lumps 1K0 825 001 B x1
1K0 825 002 B x1
N 909 591 01 fixing kit x4
N 103 546 02 fixing kit x10
A list of BlueMotion parts and some extras to make under the car smoother. I am yet to do this, but it apparently increases the MPG. Extensive thread on the topic
here