I'm with you corradoMR2 ... there is too much idle vibration in our 200t NX especially when using the brake-hold feature. Vibration is why I've usually steered clear of a 4 cylinder. On a recent Lexus Advisory Board survey, when questioned extensively about satisfaction with 2.0L turbo4, I have offered strong objection to the lack of a NX V6 option.
These are good observations that you and cMR2 have made regarding the Lexus 2.0L turbo, especially since the 2 of you put in plenty of driving seat time. It's also disappointing to hear of the vibration.
In contrast I've driven both Mercedes turbo 4's extensively (1.8L turbo and 2.0L turbo) back to back with the best Lexus V6 (3.5L used in the IS, RC and GS) and have found the difference in NVH to be insignificant and both 4's worthy of inclusion in top tier premium cars. Both Benz turbo4's are smooth and quiet at idle, quiet and smooth to 6000 rpm. Even though the Benz turbo's are small displacement (2.0L and under), they use all the latest vibration suppression techniques including balance shafts which are typically not employed with 4's this small by many automakers.
I've also driven too many IS250 loaner cars extensively, and I can say I won't miss them.
Sounds like Lexus has some work to do. IMO they need to improve the turbo4's to stay competitive, especially for base engine applications. Of course continuing to offer a V6 upgrade at extra cost is also good for profitability.
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