Which power is better, the new LaCrosse 2.0T or 3.0L?

From a practical point of view, I don't recommend you to buy a 3.0L model. First of all, Buick LaCrosse has no main displacement of 3.0L, so the fuel consumption level of such a large displacement is not good. If it is actually used, it is probably 13L- 16L. Second, the LaCrosse launched a 2.0T engine, mainly to meet consumers' dual demands for power and fuel consumption. Its maximum power and torque have exceeded the power level of the general 3.0L naturally aspirated engine. If it is used in ordinary cities, there is no problem at all. Third, the price of the 3.0L model is relatively high. If you buy a 3.0L model, the price/performance ratio is not very high. The urban fuel consumption of 2.0T engine is about 9L- 12L, which is far more fuel efficient than that of 3.0L.