I have run into a few claims that the Tu-160 has certainly LO/VLO features built into it, as well as a couple of instances of where it has gone by hostile airspace undetected. The most famous one was a penetration of NATO controlled airspace in the West-99 training, as well as a few more recent one, including a arms-expo.ru article today that briefly described that a Tu-160 came within 30km of British airspace completely undetected, and could have come much closer and still remained undetected. So..... is it plausible to suggest that some LO/VLO technology is built into the aircraft, and that it's penetration (of an IADS) capabilities are higher then that of a classic strategic bomber Tu-95/B-52?
http://arms-expo.ru/site.xp/049057052048124052050055051.html
http://arms-expo.ru/site.xp/049057052048124052050055051.html