Converted from Forza 4 (thanks to Normo for the files) / Replaces MIATA
Features:
Can be customized with:

Bumpers and skirts+cage combos
Wide body kits
Spoilers
Hoods (convert to cf only)
Headlights and tailights
Exhausts
Rims
Paint
Vinyls (debug map included, 2 custom colorable vinyls also included)
Decals
Window tint

Other features:

NFSUC female driver

Installation (make backups first!):

Put the MIATA folder into your NFSU CARS folder.
Run NFSCfgInstaller and look for your NFSU folder, then pick any file in the CFG folder when asked.
With NFS TexEd, open FRONTEND/frontb.lzc and look for ID 277 and replacer it with the secondary logo provided.
With NFS LangEd, open your language file in LANGUAGES folder, look for IDs 1204 and 2944 and change them to MR2 (AW11). Hit Apply and save.
To install the vinyls, open the VINYLS.BIN file withe NFS TexEd, and import the vinyls from the vinyls folder. Guide yourself with the file names.

Used tools:
Zmodeler 1.07b/2.2.6 | GIMP | DXTBmp | NFSU Modtools 1.0 | NFS Tex-ed 0.9.1
Copyrights/permissions:
If you would like to modify and/or distribute this mod, please:

keep this readme file without any alterations whatsoever (in case of just sharing this mod around)
give me proper credit (AJ_Lethal) for creating the mod
Seriously, respecting those conditions is not hard at all. Unless you're terminally dumb or a shameless, talentless hack.