I tried to keep an overview. Probably I missed some of them hybrids. They became legion... 

Excel list messed up a bit.
After year of build you see power in kW followed by BHP plus a comment when car has additional feature like drivetrain swap or "slammation" or is available at different power level.
Power might differ a bit because of broken-in level.
If you know some more 
traded or shared ones - let me know. 
Please don`t post your creations for your personal/exclusiv use.
Hope it helps a bit. 
Please don`t quote this post!
UPDATE: 04/03/2013 - 12:22AM
	Brand	Model	Build Year	kW	PS / BHP	Comment		1 KW = 1,359621617 PS
	Acura	NSX	1991	11676	15879			
	Acura	NSX RM	1991	14540	19775		source: ShaZZa	
	Audi	R8 5.2 FSI Quattro	2009	42009	57132			
	Audi	RS6 Avant	2008	1014	1379			
	Blitz	Blitz Dunlop ER34 Skyline	2007	3734	5078	also seen 9373 kW		
	BMW	2002 Turbo	1973	558	759	slammed		
	BMW	M3	2004	603	820			
	BMW	M3 CSL	2003	714	971	slammed		
	BMW	M5	2008	770	1047			
	BMW	M5	2008	928	1262	slammed		
	Bugatti	Veyron 16.4	2009	58256	79228	rally edition (weird settings!)	(Hahaha, I changed them, didn`t know that was on purpose.)	
	Cadillac	CIEN Concept	2002	47741	64928		source: ShaZZa	
	Chaparral	2J Race Car	1970	39432	53628			
	Chevrolet	2011 Tony Stewart #14 Impala	2011	1282	1744			
	Chevrolet	Camaro Z28	1969	2266	3082			
	Chevrolet	Camaro Z28 RM	1969	10472	14242			
	Chevrolet	Corvette Convertible	1969	546	742	slammed	source: ShaZZa	
	Chevrolet	Corvette ZR1 (C6)	2009	6374	8669	also 7299 kW		
	Chevrolet	Silverado SST Concept	2002	1394	1896			
	Chrysler	300C	2005	1128	1534	slammed	source: ShaZZa	
	Citroen	GT by Citroen Road Car	----	35115	47757		source: ShaZZa	
	Daihatsu	Midget II D Type	1998	4581	6230	also 978 kW / 1136 kW		
	DMC	DeLorean S2	2004	9069	12334	also 6360 kW		
	Dodge	Challenger R/T	1970	35462	48228	also 2189 kW / 729 kW		
	Dodge	Charger 440 R/T	1970	1512	2056			
	Dodge	Viper GTS	2002	43200	58752			
	Dodge	Viper SRT10 ACR	2008	941	1280		source: ShaZZa	
	Ferrari	430 Scuderia	2007	1691	2300			
	Ferrari	458 Italia	2009	32113	43674		source: ShaZZa	
	Ferrari	California	2008	30259	41152			
	Ferrari	Enzo Ferrari	2002	1042	1417	also 855 kW		
	Ferrari	P4 330	1967	???	???			
	Ferrari	P4 330	1967	462	628	slammed	source: ShaZZa	
	Fiat	500 F	1968	5683	7729			
	Fiat 500	500 F	1968	12	16	Bouncing Car		
	Fiat 500	500 F	1968	619	842	slammed/stance		
	Ford	Focus ST	2006	1138	1548	also 812 kW		
	Ford	Focus ST	2006	484	658	slammed		
	Ford	Ford GT	2002	832	1132			
	Ford	Ford GT	2006	36567	49731		source: ShaZZa	
	Ford	Mark IV Race Car	1967	???	???			
	Ford	Mustang V8 GT Coupe Premium	2007	32628	44374			
	Gran Touring Garage	Ford Mustang Trans-Cammer	1970	???	???			
	Gran Turismo	Formula Gran Turismo / FGT	----	1701	2313			
	Gran Turismo	Red Bull X2010	----	76100	103496			
	Gran Turismo	Red Bull X2010	----	1128	1534	default colour /also with more kW		
	High End Performance	G37	----	6389	8689	also 6120 kW / 941 kW		
	Honda	Beat Version Z	1993	519	706			
	Honda	Civic Type R (EK)	1997	2406	3272			
	Honda	CR-X SiR	1990	111	151			
	Honda	CR-Z alpha	2010	929	1263			
	Honda	Element	2003	1688	2296		source: ShaZZa	
	Honda	Integra Type R (DC5)	2004	270	367	RWD		
	Honda	Life Step Van	1972	130	177			
	Honda	NSX Type R	2002	20522	27910			
	Honda	S2000	2006	803	1092			
	Infiniti	FX 45 Concept	2002	17413	23682			
	Jay Leno	Tank Car	2003	34101	46378		source: ShaZZa	
	Lamborghini	Miura P400 Bertone Prototype CN.0706	1967	???	???			
	Lamborghini	Murciélago LP 670-4 SuperVeloce	2009	923	1255			
	Land Rover	Range Stormer	2004	646	878		source: ShaZZa	
	Lexus	Bandai Direzza SC430	2006	31084	42274			
	Lexus	IS F	2007	786	1069		source: ShaZZa	
	Lotus	Elise	2004	582	791		source: ShaZZa	
	Maserati	GranTurismo S	2008	24569	33414		source: ShaZZa	
	Mazda	787B	1991	41714	56731		source: ShaZZa	
	Mazda	Autozam AZ-1	1992	1393	1894			
	Mazda	Eunos Roadster J-Limited (NA)	1991	387	526			
	Mazda	Furai Concept	2008	27283	37105			
	Mazda	RX-7 Spirit R Type A (FD)	2002	1234	1678			
	Mazda	RX-7 Spirit R Type A (FD)	2002	1273	1731	slammed/stance also with 497 kW		
	McLaren	F1	1994	14801	20129			
	Mercedes-Benz	CL 600	2000	2732	3716	slammed		
	Mercedes-Benz	SL 500 (R230)	2002	711	967	slammed		
	Mercedes-Benz	SL 65 AMG (R230)	2004	901	1225	slammed		
	Mercedes-Benz	SLR McLaren (19 inch wheel option)	2009	4730	6433			
	Mercedes-Benz	SLR McLaren (19 inch wheel option)	2009	42467	57755			
	Mercedes-Benz	SLS AMG	2010	39632	53900			
	Mercury	Cougar XR-7	1967	3449	4691			
	Mine`s	BNR34 Skyline GT-R N1 BASE	2006	866	1178			
	Mitsubishi	GTO Twin Turbo MR	1998	1292	1757			
	Mitsubishi	Lancer Evolution IV GSR	1996	13580	18469			
	Mitsubishi	Lancer Evolution VI GSR T.M. SCP	1999	1198	1629			
	Mitsubishi	Lancer Evolution X GSR P.P.	2007	2497	3396			
	Nissan	370Z Tuned Car (Academy Version)	2008	19839	26981			
	Nissan	GT Skyline GT-R (Pace)	2001	27366	37218			
	Nissan	GT-R SpecV	2009	928	1262	slammed		
	Nissan	GT-R SpecV	2009	14595	19849	also 5217 kW		
	Nissan	GT-R SpecV	2009	915	1245	rally edition	source: ShaZZa	
	Nissan	Silvia K`s (S13)	1991	879	1195			
	Nissan	Skyline GT-R V . Spec (R33)	1997	1086	1477			
	Nissan	Skyline GT-R V . Spec II (R32)	1994	1112	1512			
	Nissan	Skyline GT-R V . Spec II (R32)	1994	450	612	RWD		
	Nissan	Skyline GT-R V . Spec II Nür (R34)	2002	1347	1832			
	Nissan	Xanavi Nismo GT-R	2008	24159	32856		source: ShaZZa	
	Pagani	Zonda C12	2000	32831	44650		source: ShaZZa	
	Pagani	Zonda R	2009	45735	62200		source: ShaZZa	
	PDI	Racing Kart 100	----	294	400	also 280 kW / 172 kW		
	Pescarolo	C60 Hybride - Judd Race Car	2005	1199	1631			
	Peugeot	307 CC Premium AVN	2004	2650	3604			
	RE Amemiya	Amemiya FD3S RX-7	----	887	1206			
	Renaultsport	Clio Renault Sport V6 24V	2000	543	738			
	Renaultsport	Lutecia Renault Sport Trophy Race Car	2000	12196	16587			
	Saleen	S7	2002	38744	52692		source: ShaZZa	
	Subaru	360	1958	522	710			
	Subaru	Impreza Coupe 22B STi Version	1998	1115	1516	slammed		
	Subaru	Impreza WRX STi	2007	24452	33255			
	Suzuki	Cappuccino (EA21R)	1995	374	509			
	Suzuki	GSX-R/4 Concept	2001	823	1119			
	Tesla Motors	Tesla Roadster	2008	742	1009	also seen 530 kW		
	TOM`s	X540 Chaser	2000	598	813	slammed/stance		
	Tommy Kaira	ZZII	2000	35693	48543		source: ShaZZa	
	Toyota	2011 Brian Vickers #83 Camry	2011	42334	57574			
	Toyota	86GT	2012	431	586	Drift Car		
	Toyota	Corolla Levin GT-APEX (AE 86)	1983	671	913			
	Toyota	Prius G	2009	4601	6257			
	Toyota	Sports 800	1965	411	559			
	Toyota	Sprinter Trueno GT-APEX (Shigeno)	2000	450	612			
	Toyota	Supra 3.0GT Turbo A	1988	1734	2358		source: ShaZZa	
	Toyota	Supra RZ	1997	889	1209			
	VW	Golf GTI	2005	1010	1374			
	VW	Karmann Ghia Coupe (Type-1)	1968	717	975	slammed		
	VW	Schwimmwagen Typ 166	1942	5508	7491			
	VW	W12 Nardo Concept	2001	39815	54149		source: ShaZZa