Trx777 — Doll

: It reportedly achieves a 0–60 mph time of 3.5 seconds .

: While not "TRX," Mattel uses similar alphanumeric codes for dolls, such as the Polly Pocket. 3. Additional "777" Contexts doll trx777

: The 2027 model features an updated 6.2L Hellcat V8 engine. It has been upgraded to produce 777 horsepower and 680 lb-ft of torque . : It reportedly achieves a 0–60 mph time of 3