AC EMU Weight?

Something crossed my mind and I came up with a question. Have there been any AC-powered (catenary) EMUs built any time recently in this country? It seems to me all the EMUs running around are pretty old; the only EMUs built recentlyare the M7s. IIRC, AC EMUs have to have transformers to run -- which add to weight. So, considering FRA regulations today, one has to wonder just how heavy is the bare-minimum weight of a new straight-AC powered EMU these days? I mean, for example, would an M8 be much more heavier than the lightest permissible (if ever built) Silverliner V or Arrow IV (considering FRA-regs)?

The M2 weighs 126 000 Lbs for A car and 129 000 for B car.
The M4 weighs 128 000 Lbs for A car and 124 000 for B car D car 129.500 Lbs
M6's are 133.00 for A car, 130 000 for B car, 133.000 for D car(center)

It's not AC powered, but South Shore has some new MU's from about 2000 - the others are 1993 or 1983 vintage. Also, Metra is getting 26 bi-level catenary MU's to replace some but not all 1971-vintage highliners.

Chicago South Shore's first order of modern cars was from Nippon-Sharyo (Tokyu Car) in 1982, which would later build the Metro-North M-4 in 1988. South Shore did have a second order in the 1990s.