Table:
version
main gun
superstructure armour
hull armour
turret armour
weight
engine
notes

f
s
r
f
s
r
f
s
r

ausf. a vk622
7.5 cm (3.0 in) kwk 37 l/24
15 mm
15 mm
15 mm
15 mm
15 mm
15 mm
15 mm
15 mm
15 mm
18.4 t
maybach hl 108tr 250 ps
sgr 75 transmission

ausf. b
7.5 cm kwk 37 l/24
30 mm
15 mm
15 mm
30 mm
15 mm
15 mm
30 mm
15 mm
15 mm
18.8 t
maybach hl 108tr 250 ps
ssg 75 transmission

ausf. c
7.5 cm kwk 37 l/24
30 mm
15 mm
15 mm
30 mm
15 mm
15 mm
30 mm
15 mm
15 mm
19.0 t
maybach hl 120 trm 300 ps
none

ausf. d
7.5 cm kwk 37 l/24
30 mm + 30 mm
20 mm (0.79 in) + 20 mm
20 mm
30 mm
20 mm
20 mm
30 mm
20 mm
20 mm
20.0 t
maybach hl 120 trm 300 ps
none

ausf. e
7.5 cm kwk 37 l/24
30 mm + 30 mm
20 mm + 20 mm
20 mm
30 mm + 30 mm
20 mm + 20 mm
20 mm
30 mm
20 mm
20 mm
21.0 t
maybach hl 120 trm 300 ps
none

ausf. f1
7.5 cm kwk 37 l/24
50 mm
30 mm
20 mm
50 mm
30 mm
20 mm
50 mm
30 mm
30 mm
22.3 t
maybach hl 120 trm 300 ps
track width increased from 380 to 400 mm

ausf. f2
7.5 cm kwk 40 l/43
50 mm
30 mm
20 mm
50 mm
30 mm
20 mm
50 mm
30 mm
30 mm
23.0 t
maybach hl 120 trm 300 ps
single-chamber, globe, muzzle brake

ausf. g
7.5 cm kwk 40 l/43
50 mm + 30 mm
30 mm
20 mm
50 mm + 30 mm
30 mm
20 mm
50 mm
30 mm + 8 mm
30 mm + 8 mm
23.5 t
maybach hl 120 trm 300 ps
multi-baffle muzzle brake

ausf. h
7.5 cm kwk 40 l/48
80 mm
30 mm
20 mm
80 mm
30 mm
20 mm
50 mm
30 mm + 8 mm
30 mm + 8 mm
25.0 t
maybach hl 120 trm 300 ps
zimmerit paste added to vertical surfaces ssg 77 transmission

ausf. j
7.5 cm kwk 40 l/48
80 mm
30 mm
20 mm
80 mm
30 mm
20 mm
50 mm
30 mm + 8 mm
30 mm + 8 mm
25.0 t
maybach hl 120 trm 300 ps
electric motor for turret traverse removed, rolled homogeneous armour, no zimmerit

Statement: ausf was 18.4 tons in weight.
Question: what was ausf's weight?
Answer: 18.4 t