Crossword puzzle

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Across
  1. 2. Series of traffic signal coordinated to allow continuous flow of traffic signals to green over several intersections (9)
  2. 4. Engines developed by Ford for better efficiency and less emissions (8)
  3. 5. Method which allows group of cars to accelerate and brake simultaneously hence gap between cars is reduced (7)
  4. 10. Application under development by BMW which directly links the car with smartphone, smart watch, or even TV (17)
  5. 11. This is a semi-secret research and development facility run by Google. This was started in 2010 with development of self driving cars (7)
  6. 12. Infotainment system for cars developed by Apple (7)
Down
  1. 1. Pioneering technology being developed by Land Rover to give a digital vision of the terrain ahead by making the front of the car 'virtually' invisible (17)
  2. 3. Bus developed and running in England which runs in human waste (6)
  3. 6. Autonomous truck built by Mercedes expected to hit roads by 2025 (11)
  4. 7. This super car brand has car named One:1 (power-weight ratio) which can reach from 0-200 kmph in 11.92 seconds (10)
  5. 8. This technology was introduced in Formula 1 after fatal accident of Jules Bianchi (16)
  6. 9. This is a high speed transportation system put forward by Elon Musk (9)