* Total European new car registrations down 4.9 pct -ACEA
* W.European (EU15 + EFTA) figures show 3.2 pct drop -ACEA
* Low-cost Dacia brand doubles May market share -ACEA
* Luxury carmakers don't benefit from government subsidies
* VDA sees signs of a decrease in speed of industry downturn
(Adds details)
By Christiaan Hetzner
FRANKFURT, June 16 (Reuters) - New car registrations in Europe fell for the 13th straight month in May as many companies struggled to move metal without the benefit of cash incentives from governments, industry data published on Tuesday showed.
According to data from Brussels-based industry association ACEA published on Tuesday, registrations fell 4.9 percent to 1.27 million vehicles in May, although most markets also had one fewer working day on average versus last year's comparative month.
Whereas consumers largely eschewed luxury brands like Daimler's <DAIGn.DE> Mercedes-Benz, they cashed in on state subsidies in some markets to scrap old cars in favour of new, cheap models like Dacia's no-frills Logan saloon and Sandero hatchback where buyers could extract the most savings.
Renault's <RENA.PA> low-cost Romanian marque saw its new car registrations double in May despite Dacia's own domestic market shrinking by half, giving the brand a 2 percent share in Europe last month -- equivalent to that of Japan's Nissan <7201.T>.
Alone in the higher margin Western European market, Dacia more than tripled its sales to nearly 20,000 vehicles.
Hyundai <005380.KS> of South Korea was the month's next best performer in Europe, gaining by a quarter in May, while the Volkswagen <VOWG.DE> brand boosted its new car registrations by a healthy 9.2 percent.
Benefitting little from the cars-for-clunkers scheme that has been propping up demand in the volume market, luxury and semi-premium brands experienced another overall disastrous month by comparison.
INSOLVENCY HURTS SALES
Alfa Romeo <FIA.MI> eked out only a 3.3 percent decline, while Mercedes and Audi both fell by about 9 percent.
BMW's <BMWG.DE> eponymous flagship brand saw a 15 percent decrease and Volvo <F.N> dropped 20 percent. From there, results at other rivals went into a freefall.
New car registrations at Toyota's <7203.T> Lexus plummeted by half, giving it a share of just 0.1 percent in Europe, where it has lost its foothold despite being a major luxury player in the United States.
Carmakers like Saab and Chrysler that are in court-administered restructuring or which have just emerged from it brought up the rear with declines of around 60 percent last month.
Opel, brought last month to the brink of insolvency as talks over a state-sponsored bailout nearly failed, saw its performance deteriorate by almost 10 percent over last year's May.
Overall registrations of new cars in Europe during the first five months of this year fell 13.9 percent to 5.96 million vehicles, according to ACEA data.
"The global demand crisis in the auto industry is not over, but there are initial indications that the downturn is decelerating," Frankfurt's VDA, the German automotive industry association, said in a separate statement.
It estimated that seasonally-adjusted new car registrations rose 2 percent last month in Western Europe over April.
To read ACEA's full press release, please click on: http://www.acea.be/images/uploads/files/20090616_PRPC-FINAL-090.pdf (Reporting by Christiaan Hetzner; Editing by Hans Peters)