4 of the 5 best selling cars in the UK are vulnerable to relay attack! The one that is save has no keyless access. That cannot happen with 3db UWB...
In the May/June edition of IEEE Security and Privacy Magazine, researchers are analyzing how to secure proximity and distance measurements against attacks.
In the paper, Are We Really Close? Verifying Proximity...
While this is no longer surprising, it was very interesting to read how to protect your Tesla car (which fully kills the nice functionality of Passive Entry and Start):