The current weight of a Formula 1 car should be 660kg. The FIA is finalizing an official rule change that will require drivers to meet a minimum weight for the 2019 Formula 1 season. The minimum weight permissible is 740 kg (1,631 lb) including the driver but not fuel. More importantly, at least 80kg of that must be made up of the driver, his seat and driving equipment. A minimum of 80kg will be established for the driver and his …
It’s expected to be set at 80kg.

But the good news for The Hulk is that from 2019, driver weight will now be considered separately to the car, rather than as combined figure, which for 2018 is 734kg. A minimum weight for a driver will be mandated. The FIA is finalising plans for a minimum Formula 1 driver weight in 2019 to ensure that heavier drivers are no longer penalised. Cars are weighed with dry-weather tyres fitted. The modern-day Formula One cars are constructed from composites of carbon fibre and similar ultra-lightweight materials. The minimum weight of the car, without fuel, has gone up slightly from 733kg to 740kg. A minimum of 80kg will be established for the driver and his seat, including specially marked ballast that will sit under it, while the overall car/driver weight will rise a further 6kg to 740kg. The FIA came up with a new rule for the 2019 season which minimizes Formula 1 driver weight so that heavier drivers are no longer penalized. The FIA is finalising plans for a minimum Formula 1 driver weight in 2019 to ensure that heavier drivers are no longer penalised. When considered on its own, the car will have to weigh 660kg. Prior to the 2014 F1 season, cars often weighed in under this limit so teams added ballast in order to add weight to the car. The FIA is finalising plans for the introduction of a minimum F1 driver weight in 2019, ensuring heavier drivers are no longer penalised.
Chassis design.