the year, resulting in Bridgestone increasing their development rate to research advances. Following his victory at the , McLaren driver Mika Häkkinen led the World Drivers' Championship with 64 points, ahead of Michael Schumacher of Ferrari (62 points) and David Coulthard for McLaren (58). Schumacher's teammate Rubens Barrichello was fourth with 49 points, and Benetton's Giancarlo Fisichella was fifth with 18. In the World Constructors' Championship McLaren led with 112 points, one point ahead of second-placed Ferrari. Williams were third with 24 points, while Benetton (18 points) and Jordan (12) were fourth and fifth respectively. After the race in Hungary, five teams conducted mid-season testing at the Silverstone Circuit from 15 to 17 August. McLaren test driver Olivier Panis was fastest on the first day, ahead of Jordan's Heinz-Harald Frentzen. Williams test driver Bruno Junqueira's car had a water leak, resulting in repairs which limited his team's testing time. Panis remained the fastest on the second day. Jos Verstappen's Arrows car had a sensor failure, limiting his team's testing time; the car's floor had to be removed to install a new sensor. Panis was again fastest on the final day of testing. Ferrari opted to test the suspension and tyres of Michael Schumacher's car at the Fiorano Circuit. Schumacher later moved to the Mugello Circuit, with Barrichello conducting engine and setup tests, and Ferrari test driver Luca Badoer remained at Fiorano for development work on new car components. Prost opted to test at the Autodromo Nazionale Monza on 17–18 August with driver Jean Alesi. Benetton conducted a five-day, one-car test at the Danielson Circuit, with test driver Mark Webber on aerodynamic development for the first four days and Alexander Wurz concentrating on practice starts the last day. In September 1999 the Fédération Internationale de l'Automobile (FIA) released a provisional calendar for the 2000 season, dropping the Circuit de Spa-Francorchamps from the Formula One World Championship due to Belgian tobacco-advertising laws which threatened to cancel the race; several teams had tobacco sponsorship. The FIA had the revived Dutch Grand Prix at the Circuit Park Zandvoort and the Portuguese Grand Prix at the Autódromo do Estoril as alternatives if the Belgian Grand Prix was cancelled. The dispute was resolved when the Belgian government exempted the race from the advertising law, and it was reinstated at the FIA World Motor Sport Council meeting in Paris on 6 October. The Grand Prix was contested