Here's the first part of my notes, going through game day 283:
DAY 279
Row 1:
Mazda 
Roadster 1600 NR-A (NB) '04
18,490 cr.     320 PP     19610 km
Titanium Gray Metallic II
Nissan 
SKYLINE GTS-t Type M (R32) '91
15,855 cr.     366 PP     80831 km
Dark Blue Pearl
Row 2:
Nissan 
CUBE EX (FF/CVT) '02
11,518 cr.     264 PP     40248 km
Diamond Silver Metallic
Toyota 
ARISTO V300 '00
36,343 cr.     396 PP     35554 km
Red Mica
Row 3:
Hyundai 
Tiburon Turbulence '99
13,466 cr.     340 PP     8721 km
Tropic Green
(W&N note: as you can see, these are STILL only available in this color as far as I know 

)
Volkswagen 
New Beetle 2.0 '00
18,278 cr.     279 PP     59294 km
Canyon Red
DAY 280
Row 1:
Toyota 
MR2 Spyder (6MT) '02
21,181 cr.     348 PP     5681 cr.
Dark Green Mica
Mitsubishi 
PAJERO Rally Raid Car '85
391,454 cr.     437 PP     4273 km
(livery)
Row 2:
Mazda 
Carol 360 Deluxe '62
33,162 cr.     387 PP     21992 km
Lyon Blue/Pastel Gray
Honda 
S2000 Type V '03
32,931 cr.     387 PP     21992 km
Silverstone Metallic
Row 3:
Volkswagen 
Lupo 1.4 '02
12,596 cr.     281 PP     37367 km
Jazzblue Perleffekt
Citroen 
Xantia 3.0i V6 Exclusive '00
27,964 cr.     345 PP     15482 km
Rouge Pivoine
(W&N note: I seem to have made a few errors when writing down this car.  I originally forgot to record the year, and I recorded the color as "Rouge Pivene" or something similar.  Oooops...)
DAY 281
Row 1:
Mercedes-Benz 
SL500 (R129) '98
123,191 cr.     396 PP     53423 km
Dunkelblau
Jaguar 
XKR R-Performance '00
95,616 cr.     458 PP     38554 km
Slate Metallic
Row 2:
Holden 
Monaro CV8 '04
43,945 cr.     435 PP     16473 km
Phantom Mica
Subaru 
IMPREZA Sedan WRX STi Version V '98
24,251 cr.     430 PP     33840 km
Cool Gray Metallic
Row 3:
Honda 
S2000 Type V '00
35,055 cr.     395 PP     3061 km
Berlina Black
Mazda 
MX-5 Miata V-Special II (NA, J) '93
20,444 cr.     325 PP     29631 km
???
(W&N note: It seems I forgot to write down the color of this car 

)
DAY 282
Row 1:
Toyota 
ARISTO V300 Vertex Edition '00
41,763 cr.     397 PP     16427 km
Silver Metallic
Scion 
xA '03
14,042 cr.     284 PP     24473 km
White
Row 2:
Audi 
TT Coupe 1.8T quattro '00
39,094 cr.     367 PP     36085 km
Brilliant Black
Suzuki 
ALTO WORKS RS-Z '97
11,011 cr.     279 PP     19494 km
Saturn Black Metallic
Row 3:
Daihatsu 
MOVE Custom RS Limited '02
13,324 cr.     243 PP     30484 km
Steel Gray Metallic
Amuse 
S2000 R1 '04
124,324 cr.     450 PP     1082 km
Silver Stone Metallic
DAY 283
Row 1:
Ruf 
3400S '00
69,777 cr.     445 PP     20464 km
(The color has no name.  The paint "chip" shows a powder blue color, while the actual color appears to be an irrdescent aquamarine color.)
Mazda 
DEMIO GL-X '99
11,715 cr.     277 PP     40184 km
Brilliant Black
Row 2:
Mercedes-Benz 
SL 65 AMG (R230) '04
169,033 cr.     437 PP     22724 km
Jaspisblau
Mitsubishi 
Lancer Evolution V GSR '98
22,433 cr.     437 PP     61863 km
Scotia White
Row 3:
Aston Martin 
Vanquish '04
206,859 cr.     476 PP     26715 km
Malham White
Mitsubishi 
Lancer Evolution VIII MR GSR '04
32,074 cr.     453 PP     11221 km
Red Solid
I've also logged days 284-287.  Those will be posted later.  Before you ask about the unusual capitalization of some models, I've capitalized them just as the game does.