Sauber Formula 1 team brings raft of upgrades to Belgian Grand Prix

Sauber has finally been able to put upgrades into production following its recent takeover by Longbow Finance, with a new rear wing introduced before the summer break.

It had planned to bring a bigger aerodynamic upgrade package to Spa and after meeting targets at the factory, a new front wing with short nose, floor and front and rear brake ducts will be run.

Both Felipe Nasr and Marcus Ericsson will get the updates and these will be seen on the car from first practice on Friday morning.

Following a cash injection from its new investors, it is believed Sauber has strengthened its pool of spares but it remains lower than it would like.

The package represents the first major update to the C35 all season, with a lack of finance and an uncertain future having left the car largely unchanged since pre-season testing.

Sauber is continuing to develop its 2016 challenger in a bid to score its first points of the season and move up to 10th in the constructors' championship.

Manor currently occupies that position, following Pascal Wehrlein's 10th-place finish in Austria.

Sauber has never finished outside the top 10 since the outfit made its debut in 1993.