Well it looks like BC wins hands down, but here goes:
$50.00 1Xs Acura RSX
$50.00 1Xs Nissan Skyline
$50.00 1Xs Toyota Supra (Red)
$20.00 1Xs Bearing Kit
$15.00 1Xs All Wheel Drive Kit
$13.00 3Xs Body Kits (1Xs RSX, 1Xs Skyline & 1Xs Supra)
$08.00 1Xs Suspension & Steering Kit
$06.00 3Xs Light Kits (1Xs RSX, 1Xs Skyline & 1Xs Supra)
All told: $250.00 + 17.50 = $267.50
The RSX is the only one upgraded at this point past lights/body because Santa will be delivering the Skyline & Supra on Christmas day (Skyline = Me/Supra = 8yr Old)

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AP