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      01-08-2013, 10:02 PM   #45
BMW86
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Drives: 135i CLA45 AMG Ninja
Join Date: Jul 2008
Location: Australia

Posts: 8,932
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I'm a big fan of the DCT but I think it's 2 biggest downsides are:
- it's not easy to launch, therefore not the best for drag racing
- diff is welded so aftermarket LSD's are 4k +
Everywhere else, the DCT is unbelievable. If these things aren't a concern than the DCT is perfect.

I personally prefer the 8spd because imho, it felt 90% as quick as the DCT which is amazing. I assume the 8spd is bolted as opposed to welded so LSD is only a 2k investment and it shouldn't be any harder to launch than the 6spd steptronics. Plus you've got an extra 2 gears over the N54 step and N55 DCT so fuel economy gets even better on the highway.

Both transmissions are amazing though.
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BMW 135i N54 TWIN TURBO
Quarter Mile 12.173@113.70mph - Street Tyres
Queensland Raceway Sprint 1:01:22 - Street Tyres
Queensland Raceway Clubman 1:04:74 - Street Tyres
Lakeside Raceway 1:03:97 - Street Tyres
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