Solved by many: Near Mint, Third Edition

[Carnut]

#17 = Le Mans Coupe?

[woodinsight]

#5 - NP-1 1969 from Brazil (photo shows car in 2007)

[als15]

#16 is a Moretti 500 Giardiniera, with part of Fiat body and Fiat 500 engine moved in front to be FWD.

[hondast]

#19 Colani Miura LeMans?

#10 Hotchkiss Gragoire Sport?

#18 Bergholt Streamliner?

EDIT: Gregoire...   

[studhamsmudger]

#13 Meyrignac
#20 SSV Sceptre kit car

[Allemano]

Isn't #7 a Milano kit car - Alfa-engined?

Yes, but that's not the complete answer. Locked for you till your next reply!

#13 Meyrignac
#20 SSV Sceptre kit car

#13 is correct!
#20 is almost correct and locked for studhamsmudger till his  next reply.

#19 Colani Miura LeMans?
#10 Hotchkiss Gragoire Sport?
#18 Bergholt Streamliner?

Except of the little typo all right.

#16 is a Moretti 500 Giardiniera, with part of Fiat body and Fiat 500 engine moved in front to be FWD.

Correct of course!

#5 - NP-1 1969 from Brazil (photo shows car in 2007)

Correct!

#17 = Le Mans Coupe?

Yes!

[Oguerrerob]

9. Chevrolet Corvair Alabama

[Allemano]

9. Chevrolet Corvair Alabama

Yes, but it had acertain name as it was built for a certain client...
Locked for you till your next reply.

[Oguerrerob]

18. Berghold Streamline by Fred Berghold 1932

[Allemano]

18. Berghold Streamline by Fred Berghold 1932

Sorry that's already solved by hondast.

update the result list soon.

[Oguerrerob]

 "Claymobile," fueling speculation that this may have been a Corvair that was gifted to Cassius Clay. Yet there's also speculation that Clay, who changed his name to Muhammad Ali in 1964, would not have accepted a gift with his former name on it.

[Oguerrerob]

Please fill the list to avoid repetitions

[Allemano]

Please fill the list to avoid repetitions

Ay Ay Sir!

[Allemano]

"Claymobile," fueling speculation that this may have been a Corvair that was gifted to Cassius Clay. Yet there's also speculation that Clay, who changed his name to Muhammad Ali in 1964, would not have accepted a gift with his former name on it.

That's at least what that ad says:

[Carnut]

For #7 you must be looking for S. & J. Milano, built by S. & J. Motor Engineers of Battle, East Sussex and based on an Alfetta GT.

[Allemano]

For #7 you must be looking for S. & J. Milano, built by S. & J. Motor Engineers of Battle, East Sussex and based on an Alfetta GT.

Exactly!

[Carnut]

#14 is a Lamborghini Espada prototype. Here's a front view of it:

[Allemano]

#14 is a Lamborghini Espada prototype. Here's a front view of it:

Right you are! I thought it would be one of the easiest to solve, but obviousely I was wrong.

[woodinsight]

#11 - Ranger Cub?

[Allemano]

#11 - Ranger Cub?

[woodinsight]

#2 - Tripolino?

[Allemano]

#2 - Tripolino?

Yes!

[woodinsight]

#20 - Specframe Spectre?

[Allemano]

#20 - Specframe Spectre?

Still not the name I have and I'm pretty the one I have is the right one.

[studhamsmudger]

#20 SVC Spectre