Just to help clarify the whole P-type and L-type for everybody. Just to let you all know I'm new to this forum! I have had my mk2 for a year now. I have been researching it forever. So here goes all the quick info on it(mk2):
82-84 the L-type came with 14x5.5 rims that were used on the regular celicas. They did NOT have the fender flares. They also do not have the 8-way adjustable sport seats. They were available in either 5 speed or 4-speed auto. Digital Dash with a Trip computer were optional only on the L-type. Did not have Limited Slip
Has always had the sport seats, 14x7 rims, flares and headlight washers(option, but was not available on the L-type).This was also available witha 4-speed auto or a 5-speed manual. The wing was also only available on the p-type. Did have limited Slip
first year of sale. The had the original steering wheel and the always had a black hatch and bumper regardless of color. Speedometer went up to 85 mph. The p-type could not have leather. They came out with 3.73 gears. Also it debuted with 145 horsepower. Also in 1982 models there was no power antenna instead a glass antenna was used.
83: No changes accept for the addition of TCCS, and the p-type could now have leather, and the addition of the power antenna.
84: In 1984 it gets tricky, all automatic and L-type supras came rated with a 150 h.p. and all 5-speed p-types had 160 h.p. Now this was the first year where the front turn signals were wrapped around. It also got a new steering wheel, cruise control was moved to a stalk on the steering column, and a more aggressive front air dam was installed. Now the gear ratios changed as well. 5-speeds got 4.30 gears while automatics recieved 4.10 gears. Also the mk2 recieved a hatch sticker that went all the way acroos it that said "SUPRA"
85: All mk2's now had 161 h.p., they also recieved a new spoiler that went the length of the hatch. The l-types, also got new rims they looked exactly like p-type rims, but were in a 15x6 version and were silver clear coat painted. Not many know this, but 85s had heated mirrors which are activated with the rear defroster.
86: The last year, the only change was a CHMSL on the spoiler to conform to federal regulations.
Keep in mind there were color changes through thius time.
hope that helps.