BMW has restarted vehicle production at its German plants. Its Mini and Rolls-Royce brands have also reopened their plants in the UK.
Mercedes-Benz's German factories have resumed production.
Fiat has restarted van production at its Sevel plant and preseries production of the Fiat New 500 electric car at Mirafiori.
Jeep Renegade and Jeep Compass hybrids production has resumed at Melfi.
Production of the the Fiat Panda in Pomigliano and the 500L in Serbia, as well as of Alfa Romeo models in Cassino, will restart between late May and early July.
Maserati has resumed sports-car production at its Grugliasco plant and output of the Levante SUV in Mirafiori. Its plant in Modena will begin production of a new MC 20 sports car in early July.
Hyundai restarted output at its factory in in Nosovice in the Czech Republic on April 14.
Jaguar Land Rover
Jaguar Land Rover's plants in Solihull, England, and Nitra, Slovakia, have reopened. Manufacturing will resume at Halewood on June 8, starting with one shift. Small pockets of business-critical activity are taking place in Castle Bromwich to prepare for new model year introductions, the company said.
Kia reopened its plant in Slovakia on April 6.
Nissan will restart car production at its Sunderland, England, on June 8. The automaker restarted production at its Barcelona factory on May 4.
PSA is gradually restarting production at its European plants building Peugeot, Citroen and DS vehicles, as well as Opel's factories in Germany and Poland, and Vauxhall plants in the UK.
Opel's Kaiserslautern components plant resumed production on May 18. The automaker's car plants in Ruesselsheim and Eisenach will restart output soon, CEO Lohscheller told the VRM newspaper group, without naming specific dates.
Renault restarted operations at its factory in Flins, France, on April 28. Other French plants will resume production in May.
Renault's Romanian subsidiary, Dacia, resumed operations in Romania on May 4.
Suzuki planned to restart its plant in Esztergom on April 27 in a single-shift operation.
Toyota reopened its Yaris factory in Valenciennes, France, on April 21.
Its UK plant in Burnaston is expected to resume production after May 26.
Toyota's joint venture plant with PSA Group in Kolin, Czech Republic, restarted production of the Toyota Aygo, Peugeot 108 and Citroen C1 minicars on May 25.
Production of the C-HR crossover and Corolla sedan in Sakarya, Turkey, resumed on May 11.
Audi has resumed production at its European car and engine plants.
VW has reopened its factories in Germany, Slovakia, Spain, Portugal and Russia. Through May, production will be resumed successively in South Africa, Argentina, Brazil and Mexico. VW is indefinitely delaying the resumption of production at its U.S. plant.
Seat restarted output at its Martorell car plant and its Spanish components plants on April 27. Martorell's three production lines are working at one third of capacity. The company increased production on May 11 by adding a shift to the line of the new Leon.
Skoda resumed production at its three Czech sites on April 27.
Bentley reopened its factory in Crewe, England, on May 11. The automaker said the factory will run at 50 percent capacity for the first few weeks due to new health and safety measures.
VW Group's Porsche, Lamborghini and Bugatti brands resumed production on May 4.
Volvo restarted vehicle production at Torslanda, Sweden, and Ghent, Belgium, on April 20. Its powertrain plant in Skovde, Sweden, also reopened on April 20.
The automaker also has restarted limited production at its body components plant in Olofstrom, Sweden.
Nick Gibbs, Christaan Hetzner, Andrea Malan, Douglas A. Bolduc, Bloomberg and Reuters contributed to this report