Spanish boutique coachbuilders Tramontana have already established themselves with their fine line of handbuilt supercars, highlighted by the topless Tramontana S and closed-roof Tramontana R models. Now they are ramping up the contest with their halo Tramontana XTR — a similarly mid-mounted burner clearly aimed at the racetrack. Powered by a Mercedes-Benz V12, the twin-turbocharged engine [...]
