Possible Clues:

• It borders four oceans
• It holds about 70% of the world population
• Two continents considered as one
• Home to Iberia and Siberia
• On reflection, lives to regret crossing area, a huge one
• "1984" superstate
• Bicontinental region
• Turns up, is found in motoring organisation on nice street in part of Turkey
• Huge landmass
• From Spain to Siberia