Ford releases power/weight details for 2015 Mustang. The base 3.7-liter V6 model’s power rating drops from 305 hp to 300 hp. Torque is the same at 280 lb-ft. Compression ratio is 10.5:1. Manual: 3526 lbs (30 lbs up). Auto: 3530 lbs (12-lbs up).
The GT, 5.0-liter V8, has 435 hp and 400 lb-ft of torque, up 15 hp and 10 lb-ft from its predecessor. Compression ratio is 11:1. Manual: 3705 lbs (87lbs up). Auto is 3729 lbs, a 54-lb increase.
The EcoBoost 2.3-liter turbocharged four-cylinder on 93-octane gasoline has 310 hp and 320 lb-ft of torque. Compression ratio is 10.5:1. Manual: 3532 lbs (36 lbs up). Auto is 3524 lbs (up 6lbs).