The CRH2 is based on the JR East E2 Shinkansen.
Base models:
CRH1 - Bombardier Regina
CRH2 - JR East E2
CRH3 - Siemens Velaro
CRH5 - Alstom Pendolino
I am particularly interested in the first batch complete built
CRH2A (8-car, 60 sets) made in Japan, three trainsets are fully
built, six subsequent knock-down kits and the rest (51 sets) built
by China. There are CRH2B (16-car, 20 sets), 2C (8-car, 10 sets)
and 2E (16-car, 20 sets) variants. Upgraded 2C trainsets can run up
to 370 km/h. All other variants 250 km/h
Joke: Why not JR East start buying back those 2C and place on
Tohoku Shinkansen... Save money in R&D haha~!
Woh! Didn't recognise the 1st one as a Bombardier product
hahahah!
Like the third one, for obvious reasons~ 
