507-hp BMW Alpina B7 rumored to appear in Geneva

Back in December, we received a surprise sneak peak sketch of the upcoming Alpina B7 (above). Now Carscoop is quoting inside sources with news of the B7's new powertrain, and a date for the unveiling. The new Alpina B7 is rumored to use BMW's 4.4L, twin-turbo V8, retuned to pump out a breathtaking 507 hp. That's a mere seven ponies more than the last generation B7, which achieved additional punch from BMW's 4.4L by employing a supercharger. The new Alpine B7 will supposedly be unveiled to the press at Geneva this March, where we'll learn more, like whether the modified 7 series will receive BMW's rumored eight-speed transmission.
[Source: Carscoop]