RTR's Spec 5 Mustang shows very strong straight-line acceleration and composed cornering, but its rear-wheel-drive launches require careful clutch and throttle control to avoid wheelspin.
The Spec 5 reached 0–60 mph in 3.9 seconds yet will spin the rear tires if not carefully slipped into gear; launch control vaporizes the rear tires and the two-mode exhaust was stuck open. The best quarter-mile was 11.8 seconds at 126.6 mph, and the automatic transmission may yield quicker launches due to faster shifts.
Contrary to expectations, the Spec 5 behaved more like a high-grip, balanced car than a drift missile, with stock anti-roll bar, damper settings, ride height and alignment working well with Michelin Pilot Sport 4S FP tires. It recorded 1.05g on the skidpad and a 23.6-second figure-eight at 0.90 cumulative g, showing mild midcorner understeer but only moderate power-on oversteer under aggressive inputs. Overall, RTR's Spec 5 pairs significant power with a well-sorted chassis, but extracting its best straight-line times requires driver skill and careful launch technique.
Read the full article at motortrend.com.
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