My buddies and I did one recently. It was a 2010 SS M6 and there is so much room from the top it's not funny. We were able to pull just the engine and leave the M6 behind. There is enough room to lift the engine, pull it six inches forward to slide it off the input shaft, lift the entire engine w/ accessories and intake over the rad. support, without removing the hood or even the hood struts.
It is absolutely a dream to work on compared to a 4th gen.
67 Turbo 347 LS1 Camaro
99 FRC Corvette
06 AMG E55 w E63 conversion, forged Darton block and 2.9 Whipple build
06 CLS55 AMG 2.9 Whipple