World Car Fans has all the goods on the new Marcos TSO GTC superca and its targa-topped version, the TSO R/T. One detail that's come to light since we last posted on it earlier this week, is a performance pack, which turns the Corvette-powered GTC into a world-class monster with specs like a top speed of 185 hp, zero-to-60 mph time of 4.1 seconds, and 0-100-0 time of 12.9 seconds. The pride of Kenilworth, Warwickshire starts in the 50,000 range, which is a lot, but packs some value compared to competitors. How much is it in Yankee bux? Don't even worry about it.