SOLVED - Job Swap - by Otto Puzzell, Quiller, Tifosi, jotage21, Paul Jaray and João

[@re]

Ah!! Finally!

Only #7 left... and one more clue for that: It's powered by an engine of a type that is normally used to propel the kind of vehicles normally built by the company that built the car that was just solved. Did you get that?

[@re]

The (almost complete) list:

1 - 1965 O.S.I Quattroruote Secura (Otto Puzzell)
2 - 1980 Briggs & Stratton Hybrid (Otto Puzzell)
3 - 1981 Wolfrace Sonic (jotage21)
4 - 1985 ASC Vision (Tifosi)
5 - 1999 Quaife R4-GTS (Quiller)
6 - 2002 Karmann Transformer (Otto Puzzell)
7 - ?
8 - 2007 Alpine Imprint RLS (Quiller)
9 - Italcar T2 (Quiller) - also known as the Jawa Chic or King 500 (Paul Jaray)
10 - 2007 Faurecia Premium Attitude (Tifosi - on Otto's request)

[@re]

Let me give you the minute details here:

The last one solved here was a Jawa.

The one unsolved puzzle in the flock has an engine of a type that Jawa normally builds.

Jawa normally builds motorcycles.

Rookies? Experts? Professionals?

#7 wants to be retired!

[@re]

Let's see if you can get this one, too, if I give you one last, fat clue.

First, I'll spell it out for you: Car 7 has a motorcycle engine.

And the man who built it has a first name used by a US president, and a last name used by a US president.

Good luck!

[@re]

Let's make the search for the man a presidential quiz, with Obama moving in next week and all.

To narrow down the list of possible names for the builder of car 7, you need a list of the presidents of the United States.

Then you remove from the list all those who share their last name with anybody else on the list.

And then you remove from the list all those who have been in office for any other period of time than:
a) One whole period (from election to election), or
b) Two whole period (from election to election to election).

By now, your list should be reduced from 43 names (or 42, depending on whether you wrote Grover Cleveland once or twice), to 18.

From this list, you can also remove all the presidents who share their first name with anybody else on the list. That should rid you of another four. You can also delete William Howard Taft and Bill (William) Clinton.

This leaves you with 12 names. Among these 12 first names and 12 last names you will find the ones that are used by the builder of car 7. Which is powered by a motorcycle engine (which, by the way, is not from the same country as the builder).

This probably made you more confused. But hey! That's what puzzling's all about

[João]

To finish this puzzle here comes number #7  George Carter with Yamaha motorcycle engines.

[@re]

Oh yes! You did it!

That completes this puzzle - finally...

Which gives this list:

The (almost complete) list:

1 - 1965 O.S.I Quattroruote Secura (Otto Puzzell)
2 - 1980 Briggs & Stratton Hybrid (Otto Puzzell)
3 - 1981 Wolfrace Sonic (jotage21)
4 - 1985 ASC Vision (Tifosi)
5 - 1999 Quaife R4-GTS (Quiller)
6 - 2002 Karmann Transformer (Otto Puzzell)
7 - 2006 Can-Am Yamaha Racer by George Carter (João)
8 - 2007 Alpine Imprint RLS (Quiller)
9 - Italcar T2 (Quiller) - also known as the Jawa Chic or King 500 (Paul Jaray)
10 - 2007 Faurecia Premium Attitude (Tifosi - on Otto's request)

Points awarded:
Otto Puzzell 3, Quiller 3, Tifosi 2, jotage21 1, Paul Jaray 1 and João 1.

Congratulations!