A resounding NO?
2008 Porsche Coupes (From Porsche.com)
Curb weight 3,075 lbs Carrera S 0-60 4.6, 182 mph
Curb weight 3,075 lbs Carrera 0-60 4.8, 177 mph
Curb weight 3,157 lbs Carrera 4 0-60 4.9, 174 mph
Curb weight 3,252 lbs Carrera 4S 0-60 4.6, 174 mph
Curb weight 3,329 lbs Targa 4 0-60 5.1, 171 mph
Curb weight 3,384 lbs Targa 4S 0-60 4.7, 179 mph
Curb weight 3,494 lbs Turbo 0-60 3.7, 193 mph
Curb weight 3,175 lbs GT2 0-60 3.6, 204 mph
Curb weight 3,075 lbs GT3 0-60 4.1, 193 mph
Curb weight 3,031 lbs GT3 RS 0-60 4.0, 193 mph
Average of above weights = 3204.7 lbs
2008 Corvette Coupes (from Corvette.com et al)
Curb weight 3,217 lbs coupe 0-60 4.2, 186 mph
Curb weight 3,162 lbs ZO6 0-62 3.8, 199 mph
Curb weight 3,350 lbs ZR1 0-60
TBD (est. low 3 sec.s), 200+mph
Average of above weights = 3243 lbs
Tweak the numbers as you will (93.14159% of all statistics are determined on the spot), but, 38.3 lbs, RESOUNDING?