No they won't and we've been over this. Stop spreading false information.
^ CLEARLY not the same size
1) Height
The Sonic CD instruction manual states that Metal Sonic is about 2.5 ft. (76.2 cm.) tall and since Metal Sonic is the most accurate recreation in the Robotic Hedgehog line and Metal Sonic`s sprites are the exact same height as Sonic`s sprites it can be assumed that Classic Sonic is also around that same height.
Metal Sonic`s Height = about 2.5 ft. (76.2 cm./30 in./0.762 m.)
Classic Sonic`s Height = about 2.5 ft. (76.2 cm./30 in./0.762 m.)
In Sonic 06 (Sonic 2006/SONIC THE HEDGEHOG/That Soul Crushing Game/Whatever you like to call it), Elise is said to stand at 64 inches tall (5.333 ft.). Comparing their bodies in a cutscene where they are walking through a meadow, Sonic stands at 27/40 of Elise`s height (43.2 in./1.1 m.).
Metal Sonic`s Height = about 2.5 ft. (76.2 cm./30 in./0.762 m.)
Classic Sonic`s Height = about 2.5 ft. (76.2 cm./30 in./0.762 m.)
Elise`s Height = about 5.33333 ft. (162.56 cm./64 in./1.6256 m.)
Modern Soinc`s Height = about 3.6 ft. (109.728 cm./43.2 in./1.1m/)
using these measurements, Classic Sonic is 1.1 feet shorter then Modern Sonic meaning he is just barely over 2/3 of Modern Sonic`s Height
(Fun Fact: through this research I learned that, according to the American manuals of several different Sonic games, Classic and Modern Sonic are
BOTH around 15 to 16 and Classic Tails is
OLDER then Modern Tails)
2) Attacks
Classic Sonic`s legs and arms are much shorter then Modern Sonic (Do I even need to bring up numbers to prove this?) and the fact that most of SSBP:M Sonic`s moves involve punching and kicking isn`t doing the little guy any favors.
3) Voice
Classic Sonic doesn`t talk in his games except for one voice clip in one game. In Sonic CD if you wait to long without moving (3 minutes) Sonic will say "I`m outta here!"
This voice sounds like a child`s voice and nothing like Mr. "You`re too slow!"