New product is not fueling renewed American interest in Fiat Chrysler Automobiles’ namesake Fiat brand.

The 500X, the latest product added to Fiat’s U.S. lineup, was clearly the brand’s best-selling model in November 2015, but sales at the brand slipped three percent, a modest drop of 82 units. Rewind one year and Fiat’s lineup featured only two nameplates: the 500 with which the brand relaunched in 2011, and the 30-month-old 500L. Adding the 500X, a true subcompact crossover, brought in 1,833 buyers in November 2015.

But the 500 and 500L combined to generate 1,915 fewer sales in November 2015 than in November 2014, astounding losses for a brand which in November of last year suffered a twelve-month sales low.

The Fiat brand’s figures in November 2015 were worse.

As the U.S. auto industry reported a 1-percent overall increase and a 10-percent increase in the daily selling rate (November 2015’s auto sales calendar was two days shorter than November 2014’s), Fiat sales decreased to the lowest level since January 2013 — prior to the 500L and 500X launches. True, the Fiat brand’s daily selling rate in November 2015 was up 6 percent, but the brand’s 0.23-percent market share was lower even than the 0.24-percent result achieved back in January 2013.

The 500L’s inability to succeed prior to the 500X’s launch only served to suggest that the 500L would tank following the 500X’s arrival. Only in August of last year, when a stop-sale order slowed the 500L to just 33 units, have 500L sales been slower than they were in November 2015. Only 228 500Ls were sold last month, FCA says, an 80 percent, year-over-year decline. This low-water mark wasn’t for want of inventory. Automotive News says that Fiat dealers had 225 days of 500L supply at the beginning of November.

The 500’s 51-percent drop to only 968 sales in November 2015 represented the first time since April 2011 – the 500’s first full month of U.S. availability – that 500 sales fell below 1,000 units. Not since October of last year have 500 sales increased on a year-over-year basis in the United States. That’s not to suggest that 2014 was kind to the 500. After sales of this core Fiat slid 18 percent in 2013, year-over-year volume slid 6 percent in 2014.

Through the first 11 months of 2015, Fiat 500 sales are down by a quarter, a loss of 7,823 sales in Fiat showrooms. The 500 is currently America’s 136th-best-selling vehicle, down 18 positions compared with this stage of 2014. As is the case with the 500L, there’s an abundant supply of 500s in the United States. Cars.com’s inventory listings currently display more than 5,000.

The 500X has certainly presented Fiat dealers with a viable alternative. This fraternal twin of the Jeep Renegade produced steadily increasing sales heading into November – from 324 in June to 2,178 in October – before slipping slightly in November, a lower-volume month for the industry overall. With 1,833 November sales, the 500X trailed the Nissan Juke (and a handful of other subcompact crossovers) but easily outsold the Mazda CX-3 and Mini Countryman.

In the FCA U.S. empire, Fiat is an increasingly inconsequential element. Only 2.6 percent of the new vehicles sold by Fiat Chrysler in the United States in 2012 were Fiats, but that figure has fallen to 1.9 percent in 2015’s first 11 months; just 1.7 percent in November. Sixteen different FCA nameplates outsell the whole Fiat brand in America, from every Jeep – including the Renegade – to every Chrysler and every Dodge except the Viper.

Though initially a hot seller, the 500 wasn’t a brand new design by the time North Americans were permitted to buy the car. Never has the 500L been anything other than ignored, a situation only worsened by dreadful reliability ratings and the 500X’s launch. The 500X, meanwhile, is the curvaceously cute Italian crossover in a category topped by its own boxy, off-roadable American twin, the Renegade. And will the 124 Spider, a Mazda MX-5 Miata platform partner, be a car that can generate meaningful volume for the Fiat brand?

Not a chance.

Timothy Cain is the founder of GoodCarBadCar.net, which obsesses over the free and frequent publication of U.S. and Canadian auto sales figures. Follow on Twitter @goodcarbadcar and on Facebook.