The premium compact car segment in Europe loses volume for the third consecutive quarter in Q3 of 2017, with an 8% decline in sales. Year-to-date, the segment is down by 6% to nearly 671.000 sales. The ranking is relatively stable, but some individual models still show significant volume decreases or increases. The dominant segment leader Audi A3 is down 6% in the third quarter and its closest two rivals are closing in. The 2nd placed Mercedes-Benz A-Class improved 3% while the BMW 1-series saw stable sales in Q3. All three models have sold over 100.000 units so far this year and combined they control more than half of the segment. However, that does not paint the full picture, as Audi sells its hatchback, sedan and convertible models all under the A3 monicker, while Mercedes-Benz and BMW have split off some of those versions under different names. Mercedes-Benz is the segment leader in terms of brand sales, with the A-Class hatchback, B-Class MPV and CLA sedan and station wagon at 210.606 sales, stable on the year before. BMW follows closely with 205.950 sales of its 1-Series hatchback, 2-Series MPV and 2-series Coupe & Convertible as well as the i3 EV, down 2%.