The TomTom GO 530 wasn't exactly cheap when it was released, and the 540 is even more expensive. However, whilst the 530's new features didn't seem sufficient to buy it over its cheaper predecessor, the 540's LIVE capabilities are a revelation. TomTom is even giving away £30 of fuel with the 540, which probably isn't delivered along with the device itself. So long as you can stomach the £7.99 per month subscription, the TomTom GO 540 LIVE takes sat-nav technology to a new level.
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