Survival in a sealed car

Diana O'Carroll

How long would you survive sealed in a compact car?  Is there enough oxygen to survive your journey, or should you just open a window to avoid suffocating on your own expelled gas?  Also, we ask if lightning should interrupt your television viewing - should you unplug your TV in a storm?  And we make an oil enquiry - how do we know that we'll run out of oil? How do we know we won't find more?