I don't have a great insight into what vehicles are included in the game so far. I can do some searching later for vehicle info as well, figured I would just start with the smallest and build my way up
Tyranids: Hive tyrant- 6,1m (19,8ft) Carnifex- 4,5m (14,9ft) Hierophant- 15m (49,3ft) Ripper- 0,3m (0,12ft) Malanthrope- 6,1m (20ft) Broodlord- 2,8m (9,2ft) Genestealer/Ymgarl genestealer- 1,9m (6,3ft) Gaunts- 1,3m (4,3m) Gargoyle- 1,1m (3,7ft) Lictor- 2,4m (7,1ft) Ravener- 5m (16,5ft) Zoanthrope- 3,5m (11,6ft) Tyranid warrior/Tyranid prime- 2,4m (7,1ft) Harpy/Shrike- 2,4m (7,1ft) Biovore/Pyrovore- 2m (6,7ft) Hierodule- 4,9m-5,8m (16,1-26,3ft) Trygon/Trygon prime/(Mawloc?)- 7,1m (23,4ft) Finnaly finished (but still some cool tyranids left). Thanks lexicanum. Will also edit tau and eldars later. Does somebody know hive guard and tyrant guard size?
Woo more sizes! That's great. I haven't had time today as I have had visitors, but hoping to get started with some nice visual comparisons tomorrow
All vehicle sizes are listed in the warhamer 40k wiki The land raider phobos pattern for example is the nearly 1.5 times the length of modern day abrams tank however it is 2-3 times high.