Solved -PJ504- Whitney Straight Maserati 8CM Spider H.J. Mulliner 1934

[Paul Jaray]

For 1 point:

Make
Model
Coachbuilder
Customer
Chassis #
Year

I won't lock for incomplete answers!
(I will for almost correct ones, e.g. slightly wrong year)

[Wendax]

Make: Maserati
Model: 8 CM
Coachbuilder: H.J. Mulliner
Customer: Whitney Straight
Chassis #: probably 3016
Year: 1934

[Paul Jaray]

Perfect!   
You are really a master-quiz-solver...and I took this pic from an old magazine!
I start to feel the pressure....
Here you a front view:

[Wendax]

I have that (?) magazine, too. I remembered that it was in a very old issue. And then something absolutely improbable happened: it was in the first magazine I looked into. 

[woodinsight]

Just to add some additional information -

Chassis #3016 was possibly built up from the first #3007 crashed by Nuvolari with the remains being sold to Minozzi and/or Soffietti.
Then modified/rebodied by Mulliner in 1935.
Owners were possibly Whitney Straight, Minozzi/Soffietti, Madame Braillard and later Lippai Fanos of Hungary.

The information may not be 100% correct but is worth adding if anyone discusses it further.

[pnegyesi]

Janos Lippai owned Maserati #3015, not #3016.
See the book which is titled Maserati3015 (links are not allowed here)

[woodinsight]

Janos Lippai owned Maserati #3015, not #3016.
See the book which is titled Maserati3015 (links are not allowed here)

I did say that additional information may not be correct and you just proved that - thanks Pal

[Paul Jaray]

Time to go...

[targhediferro]

May be, there will be a day when I will have a part of your unlimited knownledge about cars...It will be great!   

[grobmotorix]

No more visible puzzle photo...

Below the car before its conversion: