In the Street Fighter IV Trailer with Chun-Li explaining the storyline we see Chun-Li and a group of cooks taking a group photo together. The camera used has an LCD but the LCD on Digital Cameras hasn't been introduced in 1993/1994 (the date of Street fighter 2 and 4) it was introduced in 1995.
The car in one of the bonus stages is more modern than how they appeared in the 1990s, since the game's chronology is set after Street Fighter II released in 1991 and before Street Fighter III released in 1999.