Sweet On The Street: Amazing 1970 Pontiac GTO Convertible
1970 PONTIAC GTO CONVERTIBLE
400/350 HP, PROTECT-O-PLATE

Photo:Mecum
During the golden era of the muscle car era, all manufacturers were rushing to market with the latest gas chugging, tough sounding V-8’s. This arms race lead Pontiac to introduce what the called “The Humbler” – The 1970 GTO. Only 2,173 were made as convertibles with the 400/350 HP engine. Higher insurance rates marred the time and muscle car market and that lead to 1970 becoming the lowest production year since its 1964 introduction.

Photo:Mecum
This was Pontiac’s swan song to the muscle car as by the mid 1970’s, changes to engines, emissions and biggest of all, marketing would soon take America into the smaller sedan market and leaving us with decades of forgettable, weak powered, 4 cylinder automobiles. It was the end of an era.

Photo:Mecum
This particular GTO is a fantastic example of the beauty and subtlety of Pontiac’s finest work. Pontiac’s styling team was among the best at that time and this clean and understated convertible blends class with muscle with its great lower body lines and the cars powerful stance. Along with its power brakes, power steering, Rally II road wheels and Uniroyal Tiger Paw tires, there was nothing this car couldn’t do.

Photo:Mecum
The interior features power windows, OG console, a classic AM/FM radio along with Pontiac’s woodgrain applique pod-type dash layout and a sweet vinyl interior. This particular vehicle was sold off the floor of Schappe Pontiac in Madison, Wisconsin. Since 1970, it has remained with the original owner until 2005 when it was sold and restored. It underwent a body-off restoration and more recently, was lucky to get a rebuild Mann Speed Specialty in Independence, Missouri. She is now back to being like new. You can buy her at the upcoming Mecum auction in March.

Photo:Mecum
HIGHLIGHTS
- One of 2,173 400/350 HP GTO convertibles with automatic transmission produced in 1970
- Sold new at Schappe Pontiac in Madison, WI
- One-owner car until 2005
- Body-off restoration completed in 2005
- Extensive engine rebuild in 2015 by Mann Speed Specialty in Independence, Missouri
- Matching numbers 400/350 HP engine
- Automatic transmission
- Positraction rear differential
- Hood tachometer
- Power steering
- Power brakes
- Finished in Starlight Black base/clear paint
- Black interior and top
- Bucket seats and console
- Power windows
- Power top
- AM/FM radio
- Original window sticker
- Dealer invoice
- Protect-O-Plate
- Pre-delivery checklist
- Owner’s manual
- Restoration photos
- PHS documents
- Rally II wheels
- Uniroyal Tiger Paw tires

Photo:Mecum
Recent Posts
-
Battle of the Pony Cars: Camaro vs. Mustang
October 29, 2025The battle between the Ford Mustang and the Chevrolet Camaro is the biggest, most lasting rivalry in American car history. These two cars didn’t just…Read more -
The RM32 Ford Fastback Mustang Build Breakdown
October 24, 2025The Ford Mustang: Historic Start The Ford Mustang is one of the most iconic muscle cars in American history, capturing the imagination of car enthusiasts…Read more -
6 Things to Consider: Keep Your Classic Muscle Car Original or RestoMod it?
October 15, 2025When tackling the big question that has become a debate on the internet: Is it better to keep your classic muscle car original or turn…Read more
Become a Car Club Member
Car Club Members Get Entries to Win, Discounts in our Shop, Discounts with our Preferred Partners and more!
Membership benefits
By joining the RestoMods Car Club Today, you will receive amazing perks plus 15 bonus entries into our sweepstakes for every month you are an active member
-
Auto Discounts:Curated Discounts From Your Favorite Parts Companies
-
Restomods Monthly:Monthly Magazine With The Latest Industry News
-
Classified Ads:Get Free Postings seen by 300,000 enthusiasts monthly
-
Car Show Tickets:Check out the biggest vintage car shows on us.
-
Exclusive Car Deals:First chance to purchase any prize cars not selected






Restomods on Instagram
Follow us on Instagram and other networks











