Regarding the Sentra

Sentra series 1 (1988-1991)
chassis code: B12
engine displacement 1.6 1.5 1.4 and diesel
nickname: boxtype sentra
noteworthy: powersteering

Sentra series 2 (1992 - 1995)
chassis code: b13
engine displacement: 1.6 1.4 1.3
variants: Super Saloon, LEC, SE Saloon, Super Touring
top-of-line engine type: 1.6 liter GA16DE (110hp)
noteworthy: independent suspension, ABS (1993), all power options, fuel injection, variable engine ignition timing
nickname: series 2, LEC-type, ECCS

Sentra series 3 (1996-1999)
chassis code: b14
engine displacement: 1.6 1.4 1.3
variant: super saloon, LEC, SE Saloon, GTS, Exalta
top-of-line engine type: 1.6 liter GA16DNE (105hp) later GA16DE (110hp)
noteworthy: rear beam suspension, power folding side mirrors, sunroof available on certain models.

Sentra series 4 (2000-current)
chassis code: b15
engine displacement: 1.6 etc
variant: grandeur, etc
noteworthy: brand new efi engine, new chassis