The “3.8″ V6 base model motor: It’s fairly certain that this is referring to the current 3.7L engine found under the hood of the current Mustang; whether the displacement is going to be increased .1 or not is fairly irrelevant as the engine will remain largely unchanged, regardless. As for the power decrease (-5 HP off the current motor) this is either another attempt to throw you off the S550 trail, or a detune to further separate the V6 offering from the EcoBoost 4 cylinder that has similar power levels.
2.4L EcoBoost Engine: This one could go either way. An earlier rumor this year had this motor at 2.5L & 300HP, but the current EcoBoost found in the focus ST is only a 2.0L. It’s possible they increased displacement to account for additional horsepower, but it’s also possible they turned the dial up on the 2.0L and threw it in the 6th generation Mustang.
4.9L Coyote: This will be your current 5.0L, same as its been. Yes, Ford probably will bump the horsepower up (and we hope more than the measly 10HP the survey presented), but don’t expect anything ground breaking here.
The four options listed in this survey are rather interesting. There’s the standard 6 speed manual and automatic trans, as well as an intriguing
7 speed manual and
10 speed automatic options. the 10 speed automatic is likely referring to either the 9 or 10 speed transmission GM and Ford have been collaborating on. Fuel economy and emissions should be greatly improved with the 10 speed auto, but we might have to wait a couple years before it becomes an option for the Mustang.
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