The new 659hp GT Speed is probably the best superGT Bentley has ever made. But is it good enough to outpoint the 650hp Porsche 911 Turbo S arguably the most capable allweather sports car currently on sale...

Read the full Bentley GT Speed review: https://www.pistonheads.com/news/phd...

Read the full Porsche 911 Turbo S review: https://www.pistonheads.com/news/phd...

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