New Seasonal Events

The latest Seasonal Events are now available in GT5, featuring supercars built on or before 1979. Five expert level events touring some of the most widely used locations available in the game, and the rewards are high.
Cars are limited to a maximum of 550PP and Sports/Hard tires or less. The challenges are as follows:

• 550PP Supercar Nostalgia Cup: High Speed Ring / 5 Laps
  Period of Availability: 2013/04/11 04:00 -
  1st: Cr.299,800  2nd: Cr.164,890  3rd: Cr.119,920
• 550PP Supercar Nostalgia Cup: Daytona Road Course / 5 Laps
  Period of Availability: 2013/04/11 04:00 -
  1st: Cr.320,300  2nd: Cr.176,165  3rd: Cr.128,120
• 550PP Supercar Nostalgia Cup: Mazda Raceway Laguna Seca / 5 Laps
  Period of Availability: 2013/04/11 04:00 -
  1st: Cr.330,400  2nd: Cr.181,720  3rd: Cr.132,160
• 550PP Supercar Nostalgia Cup: Grand Valley Speedway / 5 Laps
  Period of Availability: 2013/04/11 04:00 -
  1st: Cr.325,400  2nd: Cr.178,970  3rd: Cr.130,160
• 550PP Supercar Nostalgia Cup: Eifel (Circuit) 102B / 7 Laps
  Period of Availability: 2013/04/11 04:00 -
  1st: Cr.350,000  2nd: Cr.192,500  3rd: Cr.140,000

http://www.gtplanet.net/supercar-nostalgia-cup-gt5-seasonal-event-now-live/