I'd be very pleased to see an accurate write-up of the Volvo 300's history in English. It'd be nice not only to see a general write-up similiar to the one in the French section, but also a detailed timeline on the model's development.
I once tried to figure one out once myself, getting most of my information from the V3C site:
http://www.volvo300club.nl/berichten.ph ... u=volvo300
... from the V3M history page in the French section
http://www.volvo300mania.com/histoire.htm
... and bits & pieces from period brochures & test reports. Aymat did a write up of trim changes once:
http://www.volvo300mania.com/forum-uk/v ... =1998#1998
The following is by no means complete and may not be entirely correct (certainly not for all markets).
#######
# Mk1 #
#######
# phase 1 #
19th February - presentation to the press
1976/03 - 343 DL released
1976/12 - 1977/01 - Early hub caps dropped (CH 318090)
1977/02 - 03 - chrome mirrors dropped, now matt black (CH 322918)
1977/06 - 07 - pushbuttons (headlights, heated r. screen, foglights) dropped, now rocker / rotary (CH 338990)
1977/09 - chrome door handles dropped, now matt black (from MY 1978, CH 348000)
1978 early - black dashboard available in addition to brown. Only available for certain colour schemes
# phase 2 #
1978/09 -
manual version available
new dashboard - more Volvolike, rocker / rotary switches again different
indicators on the front wings
1979/09 - 345 5-door intr.
1979 late -
larger wing mirrors
new wheels
GL intr. (tinted windows, metallic paint, wider tyres)
1980 early -
new decals side & rear
1980/08 -
2 litre 95HP B19A engine intr. (DLS, GLS)
steel bumpers replaced by wrap-aroung plastic ones
1980 - Volvo 343 Turbo wins the European Rallycross title
#######
# Mk2 # (arguably) 
#######
# phase 1 #
1981/07 - new headlights, indicators, grille, bonnet
1982/02 - 345 Van
# phase 2 #
1982/08 -
new dashboard
343 / 345 repl. by 340 & 360 (2 litre)
1982/08-09 -
360 GLT B19E engine
1983 - 360 GLE (2 litre B19E in a saloon (european markets))
1.4 litre gets electronic ignition & solex carb
1984 - 340 diesel
1985 - 1.7 litre (80PS), 5sp
B200K (101 PS carb.) & B200E (115PS inj.) repl. B19A & B19E
VDO instruments replaced Smiths
1985 - start of CKD operations ("completely knocked down" cars in kit form assembled by local labour in other countries (e.g. Malaysia)
#######
# Mk3 #
#######
1985 late -
facelift front & rear
1986 -
air con option
B200EA with EGR and Pulsair
B200F with multipoint inj. 3-way cat & lambda sond
1986 (?) 340 DL Diesel- / 360 Transport
(3dr van for some markets)
8th March 1988 1,000,000th 300
1989 - last 360
1991 - last 340
In total, 1,086,405 300's were built. 910,382 were 34*'s, 176,023 were 360's
http://www.volvoclub.org.uk/history/300 ... search.php
It might be an idea to seperate engine / gearbox changes from trim & exterior differences, and I'm sure the "special editions" section could become very long & confused, as they varied so much from country to country. Here's an attempt at listing them anyway (the market country codes may be wrong or incomplete on some models).
#######
# Mk1 #
#######
1977/8 343 DL Special (NL/D)
1978 343 DL Black Beauty (NL) / Black Diamond (B) / Silver Star (F) 343 DL-C (D) / unnamed (A/GB)
1979 343 Oettinger (D)
1980 343 DL / GL Blue Special / Green Special / Spring Volvo (NL/D/A/F/B)
1980 343 Touring (brown /red / silver met.) (D)
1981 343 Touring (white / blue met.) (D)
1981 R-Sport (D)
1981 345 GLS VIP (D/A/I)
#######
# Mk2 #
#######
1981 343 Junior (D)
1981/2 343 Winner (NL)
1982 345 GLS 2.0 5-Speed (A) / 345 GLS BlueLine (B/NL) / 345 GLS Spring Special (CH)
1982 340 Special (A)
1982/3 340 GLS R-Sport (A)
1982/3 340 DLS R-Sport (B)
1983 360 GLT "Black Beauty" (CH)
1984 340 Grand Luxe (A)
1984 340 DL/ GL / GLS Special (NL)
1984 340 GL Special Edition (GB)
1984 340 GL Frühjahrssondermodell (D)
1984/5 340 DL Polar (D)
1985 340 Winner (NL)
1985 360 GLS Sedan Spring Special (CH)
1985 340 DL Club (D) / RAI Special (NL)
#######
# Mk3 #
#######
1985 340 Winner (NL)
1986 340 Arctic / Arvika (D)
1986 360 GL Emerald (F)
1986 360 GLT Special 25 (CH)
1986 360 Crystal (CH)
198? 360 GLE SE (GB)
1986 360 GLEi SE (GB)
1986/7 360 GLT RSX2 (CH)
1987 340 Winner / Special (NL)
1987 340 DL Black Silver (D)
1987 340 Nautic (D)
1987 340 GL Special Edition (GB)
1987 340 GLE Limited Edition (GB)
1987 360 GLT "60th Anniversary" (GB)
1987 340 DL Grey Diamond (D)
1987/8 340 Redline 1.7 (NL)
1987/8 340 Blueline 1.4 (NL)
1988 340 GL Redline (D)
198? 340 Redline (GB)
198? 340 Blueline (GB)
198? 340/360 Redline (A)
1988 340 GLE Millionaire (GB/NL)
1988 360 GLT Millionär (A)
1988 340 Harmony (F)
1988 340 DL Como (D)
1989 340 DL Fjord (D)
1989 340 Special / GL Special (NL)
If someone has a specific query, I have pretty much all the 340 / 360 brochures from '76 through to '91, at least for the German / Austrian market. I'd also be interested in names & dates from the early to mid seventies when the 300 / Daf 77 was being designed & planned, information which perhaps the Dutch V3C people could help with ...
Tom
12.11.07 limited editions updated
10.12.07 limited editions updated
08.05.08 limited editions / links updated
13.06.08 limited editions updated
15.06.08 limited editions updated - thanks pistonpen paultje
16.06.08 limited editions updated - thanks antiekeradio
18.06.08 limited editions updated
09.09.08 limited editions updated
11.11.08 limited editions updated - thanks BUF340 (Helge)
21.11.08 limited editions corrected
08.04.09 limited editions corrected
09.12.09 Mk1 revisions corrected - thanks volvomania
11.12.09 Mk1 revisions & limited editions corrected