Acura's market failure is a wide combination problems all added up together. Different people will think different aspects played a more important role, and the follow is my take on the issue:
As far as engineering is concerned, Honda (and therefore Acura) is still very solid, although engineering designs and built quality has dropped compared their heyday back in the early 90's. Mechanic parts are not as over-engineered and over-built, and you see more factory recalls issued for Honda / Acura, and some of them could be rather major. When the current gen of Civic was first released, there was a somewhat major recall (on the gas pedal, I think). Before that, another earlier generation of Civic was prone to suspension problems. The 6th gen Accord also suffered from transmission problems.
The biggest problem I see with Acura has to do with market positioning. Unlike Lexus and Nissan, Honda's market positioning for Acura is very poorly handled. Acura was originally the first upscale brand among the Japanese manufacturers, but Honda never defined Acura's role very clearly. Toyota made Lexus to be an upscale, luxury brand that competes with Mercedes, BMW, and Audi, and their brand's cachet missed its goal initially, nowadays Lexus is almost every bit as competitive as the German big boys. Nissan got off to rough start with Infiniti, but they finally found their niche to be an upscale sporty brand that gives BMW a good run for their money. But Acura? In the late 80's, Acura tried to be a sporty version of Honda, and that almost worked. But it was still too easy to tell the cars were only slightly more dressed up than the down-to-earth Hondas. The DC Integra in the mid 90's was a phenomenal success, securing the brand's reputation as young and sporty. But their bigger cars were still too closely related to Honda Accords and it showed, so sales of those never really took off. Worse still, Honda left the DC Integra to languish for too long. In addition to killing the 4-door model, the sporty image that was hard-earned by the DC Integra was widely tarnished when its successor, the RSX, showed up with inferior handling capabilities. And with that, Acura lost its single most valuable asset that it worked so hard to achieve.
The EL sold well in Canada, but then Honda killed it since its market position was too close to the top end Civics and the Integra/RSX. The plan totally backfired, as people didn't want to pay top dollars for a Civic, and the RSX wasn't a 4-door. So now Acura doesn't have an entry level model. When the CSX finally showed up, people found it too expensive and too similar to the Civic, so they just bought Civics instead.
The 1st gen TSX was a phenomenal success, but at the time, the RSX wasn't selling well, and FWD V6 just wasn't people's ideas of what luxury vehicles (or even near luxury vehicles) were. In any case, most Honda can be almost as nicely furnished as the Acuras, so buyers found it perfectly acceptable to buy Hondas instead.
Right now, it seems to me that Acura is trying to sell itself as a high tech, near luxury car company. However, high tech gadgets and near luxury don't work when your cars are a$$-ugly, FWD, and V6-only.
-Lik |