Not to speak ill of the luxury Japanese brands --Acura, Lexus and Infiniti -- but I've long been convinced that unless your heart is set on the prestige those nameplates bring, you would be well-served to look at the higher-end models of the corresponding nonluxury brands.
Meaning what? Meaning that a nice Honda rivals some Acura models. Ditto Toyota and Lexus, Nissan and Infiniti.
Case in point: The Honda Accord coupe. Soon after this current Accord coupe was introduced in 2003, the Acura CL coupe was discontinued. Though the CL was more expensive than the Accord, the standard V-6 model had less power (225 horses, to the Accord's 240), and parked by the Accord, the Acura looked down-market.
Full review here