All I can say is that my '12 Pentastar/5 speed does just fine as long as you are patient (but does seem quick to 65 - 6400 rpm in 1st and 4800 in second) but would expect a hemi to be an even more pleasant experience.
8 speed just became available in the big platform at the start of the '14 (really 13.5) model year. Do think the future is direct injection and turbo like the EcoBoost. I expect to see 375 hp 3.0 V6s soon (but not yet). Boost permits the HP to be maintained at altitude.
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Looking for a 24/17 in or near Florida.
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