Chrysler's newly-anointed SRT boss Ralph Gilles and his product-and-engineering ninjas invited us out to Willow Springs, a fast, technical track in California's high desert, to check out their full line of muscle cars. They've slammed out new versions of four of Chrysler's updated product line — the Dodge Charger, Jeep Grand Cherokee and Chrysler 300C — plus the Challenger SRT8 392 — in record time. But are they fully cooked, or half baked? I drove all four on track and across LA County's pretzely Angeles Crest Highway this week. Click through on each to see what I found out.