Still need to get the G1 Reprolabels and do some touchups here and there, but here's Siren!
The body's Krylon fusion, with a mix of Testors/Tamiya for the detailing. Unfortunately the stripes on the car are only so-so as the Testors was far less consistent in how it went on (thus my switching for Tamiya for the rest of the red in botmode/on the head).
Head's the stock Hot Shot/Excellion head with some cutting and putty.