Question: How many rounds did it take the winner of a driving event in a  is a line of compact executive cars produced since late 1994 by the German car manufacturer ?

Context articles: Alfa Romeo Giulia
Audi A4
Mercedes-Benz C-Class
Audi RS 4
1996 Italian Superturismo Championship
Audi A5
BMW 02 Series
Compact executive car
Subaru Legacy
Nissan Skyline

Alfa Romeo Giulia (] ) is the name of three not directly related models by the Italian car manufacturer Alfa Romeo.
 The first is a line of sporty four-door compact executive cars (Type 105) produced from 1962 to 1978, the second is an updated, mainly up-engined Spider, Sprint and Sprint Speciale Giuliettas, and the third Giulia is a compact executive car (type 952) unveiled in 2015.
The Audi A4 is a line of compact executive cars produced since late 1994 by the German car manufacturer Audi, a subsidiary of the Volkswagen Group.
The Mercedes-Benz C-Class is a line of compact executive cars produced by Daimler AG.
 Introduced in 1993 as a replacement for the 190 (W201) range, the C-Class was the smallest model in the marque's line-up until the A-Class arrived in 1997.
 The C-Class is built at Mercedes-Benz factories in Sindelfingen and Bremen, Germany as well as numerous satellite factories in other countries.
 The first C-Class (W202) sedan was produced on 1 June 1993, and the first of the second generation (W203) rolled off the assembly line on 18 July 2000.
 The C-Class has been available with a 4Matic (i.e. four-wheel drive) option since 2002.
 The third generation (W204) was launched in 2007.
 The latest generation C-Class (W205) came out in 2014.
The Audi RS4 quattro is the top tier and highest performing version of some specific generations of the Audi A4 range of automobiles.
 It is a sports-focused compact executive car (often called sport compact in some countries ), produced by Audi's high-performance private subsidiary quattro GmbH, in limited numbers, for German car manufacturer AUDI AG, part of the larger Volkswagen Group.
 It slots distinctly above the Audi S4, as the fastest, most sports-focused model based on the A4's "B" automobile platform.
 The RS 4 made a comeback in 2012, in Avant form only based on the Audi A4 Avant.
The 1996 Italian Superturismo Championship was the tenth edition of the Italian Superturismo Championship.
 The season began in Mugello on 14 April and finished in Vallelunga on 6 October, after ten rounds.
 Rinaldo Capello won the championship, driving an Audi A4 Quattro; BMW won the constructors' championship, while Roberto Colciago took the privateers' trophy.
The Audi A5 is a series of compact executive cars produced by the German automobile manufacturer Audi since March 2007.
 The A5 range comprises the coupé, cabriolet, and "Sportback" (a five door hatchback coupé featuring a fastback like roofline with a steeply raked rear window with integrated trunk lid) version of the Audi A4 saloon and estate models.
The BMW 02 Series is a range of compact executive cars produced by German automaker BMW between 1966 and 1977, based on a shortened version of the New Class Sedans.
 The 02 Series caught enthusiasts' attention and established BMW as an international brand.
A compact executive car is a premium car smaller than an executive car.
 In European classification, compact executive cars are part of the D-segment.
 In North American terms, close equivalents are "compact premium car", "compact luxury car", "entry-level luxury car" and "near-luxury car".
 Compact executive cars are usually available in saloon, estate, coupé, and cabriolet body styles.
The Subaru Legacy is a mid-size car built by Japanese automobile manufacturer Subaru since 1989.
 Part of the original design goals for the Legacy model was to provide Subaru a vehicle in which they could compete in the lucrative North American midsize market against competitors Honda Accord, Toyota Camry, Mazda6, and Nissan Altima.
 Higher performance variants of the Legacy are offered as competitive alternatives to compact executive cars such as the Audi A4, Alfa Romeo 159 and BMW 3 Series.
 The Legacy also serves as Subaru's flagship car.
The Nissan Skyline (Japanese: 日産・スカイライン "Nissan Sukairain") is a line of compact cars, sports cars and compact executive cars originally produced by the Prince Motor Company starting in 1957, and then by Nissan after the two companies merged in 1966.
 After the merger, the Skyline and its larger counterpart, the Nissan Gloria, were sold in Japan at dealership sales channels called "Nissan Prince Shop."