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Riley 12/4 (1934 to 1938)

The Riley 12/4 came to market in late 1934 as the successor to the Riley 12/6. An inline four-cylinder 1.5L engine powered the 12/4; which w...

The Riley 12/4 came to market in late 1934 as the successor to the Riley 12/6. An inline four-cylinder 1.5L engine powered the 12/4; which was Riley’s most popular engine in the pre-war era. Three different bodies were available ranging from the saloon, touring and sports/racing. Production of the Riley 12/4 ended in 1938.

Riley 12/4 FAQs

Model years for Riley 12/4 (1934 to 1938)

For Sale 0

Avg $81,417

Sales Count 17

Dollar Volume $1.3m

Lowest Sale $4,669

Top Sale $491,750

Most Recent $65,000

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Showing 21 of 21 related listings

Dripping Springs, Texas, USA

1936 Riley 12/4 'Big Four' Special

Original & Highly Original

1k mi TMU

Manual

RHD

Sold

$65,000

Bring a Trailer

Oct 23, 2024

Details

SAVE

Lot 167824: 1936 Riley 12/4 'Big Four' Special

Sold

$65,000

1,400 mi TMU
Location: Dripping Springs, Texas, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Test Valley, GBR

1937 Riley TT Sprite Recreation

N/A

TMU

Manual

RHD

Not Sold

Bonhams

Sep 7, 2024

Details

SAVE

Lot 107: 1937 Riley TT Sprite Recreation

Not Sold

TMU
Location: Test Valley, GBR
Originality:
N/A

Due to the nature of this vehicle type, a consistent and accurate judgment on Originality is not feasible.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Roseville, California, USA

1936 Riley 12/4 'Big Four' Special

Original & Highly Original

TMU

Manual

RHD

Sold

$75,600

Bonhams

Aug 16, 2024

Details

SAVE

Lot 112: 1936 Riley 12/4 'Big Four' Special

Sold

$75,600

TMU
Location: Roseville, California, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Oxfordshire, England, GBR

1935 Riley 12/4 Merlin

Original & Highly Original

77k mi TMU

Manual

RHD

Sold

£8,520

Bonhams | Cars

Mar 15, 2024

Details

SAVE

Lot 0169: 1935 Riley 12/4 Merlin

Sold

£8,520 ($10,864)

77,632 mi TMU
Location: Oxfordshire, England, GBR
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

United Kingdom

1936 Riley 12/4 Merlin

Original & Highly Original

TMU

Manual

RHD

Sold

£9,104

Historics

Sep 23, 2023

Details

SAVE

Lot 110: 1936 Riley 12/4 Merlin

Sold

£9,104 ($11,142)

TMU
Location: United Kingdom
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

New Forest, GBR

1936 Riley 12/4 1½-Litre Merlin Saloon

Project

TMU

Manual

RHD

Sold

£7,130

Bonhams

Sep 2, 2023

Details

SAVE

Lot 587: 1936 Riley 12/4 1½-Litre Merlin Saloon

Sold

£7,130 ($8,974)

TMU
Location: New Forest, GBR
Originality:
Project

Vehicles that are partially operable, inoperable, disassembled, or incomplete that require meaningful repairs to return to road worthy condition.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

1935 Riley 12/4 Merlin

Original & Highly Original

77k mi TMU

Manual

RHD

Sold

£5,500

Bonhams | Cars

Aug 18, 2023

Details

SAVE

Lot 5328: 1935 Riley 12/4 Merlin

Sold

£5,500 ($7,011)

77,632 mi TMU
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Wychavon, GBR

1936 Riley 12/4 Sports Special

Original & Highly Original

28k mi

Manual

RHD

Sold

£66,375

Iconic Auctioneers

Aug 4, 2023

Details

SAVE

Lot 270: 1936 Riley 12/4 Sports Special

Sold

£66,375 ($84,271)

28,072 mi
Location: Wychavon, GBR
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

1934 Riley 1½-Litre 12HP Lynx Tourer Project

New Forest, GBR

1934 Riley 1½-Litre 12HP Lynx Tourer Project

Project

TMU

Manual

RHD

Sold

£4,025

Bonhams

Sep 10, 2022

Details

SAVE

Lot 518: 1934 Riley 1½-Litre 12HP Lynx Tourer Project

Sold

£4,025 ($4,669)

TMU
Location: New Forest, GBR
Originality:
Project

Vehicles that are partially operable, inoperable, disassembled, or incomplete that require meaningful repairs to return to road worthy condition.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

1937 Riley 1½-Litre Falcon 'Woodie' Estate

New Forest, GBR

1937 Riley 1½-Litre Falcon 'Woodie' Estate

Original & Highly Original

TMU

Manual

RHD

Sold

£19,550

Bonhams

Sep 10, 2022

Details

SAVE

Lot 549: 1937 Riley 1½-Litre Falcon 'Woodie' Estate

Sold

£19,550 ($22,679)

TMU
Location: New Forest, GBR
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Buxton, GBR

1936 Riley 1.5 Litre Lynx Tourer

Project

TMU

Manual

RHD

Sold

£13,500

H&H Auctioneers

Jul 27, 2022

Details

SAVE

Lot 56212: 1936 Riley 1.5 Litre Lynx Tourer

Sold

£13,500 ($16,419)

TMU
Location: Buxton, GBR
Originality:
Project

Vehicles that are partially operable, inoperable, disassembled, or incomplete that require meaningful repairs to return to road worthy condition.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Cambridge, GBR

1935 Riley 12/4 Special

Modified

15k mi TMU

Manual

RHD

Sold

£33,750

H&H Auctioneers

Mar 16, 2022

Details

SAVE

Lot 55318: 1935 Riley 12/4 Special

Sold

£33,750 ($44,350)

15,914 mi TMU
Location: Cambridge, GBR
Originality:
Modified

Vehicles with a period-correct engine and body, with multiple removable modifications, or a few significant modifications such as increased displacement, added performance equipment (turbo, supercharger, headers), transmission swaps, bumpers, or body wraps. Modified vehicles can generally be returned to original factory specifications.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Fernandina Beach, FL, USA

1937 Riley 12/4 TT Sprite Two Seater

Original & Highly Original

TMU

Manual

RHD

Sold

$491,750

Bonhams

Mar 3, 2022

Details

SAVE

Lot 261: 1937 Riley 12/4 TT Sprite Two Seater

Sold

$491,750

TMU
Location: Fernandina Beach, FL, USA
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Hradec Králové, CZE

1936 Riley Kestrel Sprite

Original & Highly Original

735 mi TMU

Manual

RHD

Sold

Auctomobile

Jan 20, 2022

Details

SAVE

Lot 150: 1936 Riley Kestrel Sprite

Sold

735 mi TMU
Location: Hradec Králové, CZE
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Hradec Králové, CZE

1936 Riley Kestrel Sprite

Original & Highly Original

735 mi TMU

Manual

RHD

Not Sold

Auctomobile

Sep 28, 2021

Details

SAVE

Lot 150: 1936 Riley Kestrel Sprite

Not Sold

735 mi TMU
Location: Hradec Králové, CZE
Originality:
Original & Highly Original

Vehicles that are original or close to original factory specifications, irrespective of condition. May include vehicles that have minor, removable modifications such as aftermarket wheels, exhaust, or accessories such as cargo/roof rack, stereos, etc.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

Chichester, GBR

1934 Riley 12/4 'tt Sprite' Replica

Custom

TMU

Manual

RHD

Sold

£51,750

Bonhams

Sep 18, 2021

Details

SAVE

Lot 245: 1934 Riley 12/4 'tt Sprite' Replica

Sold

£51,750 ($71,107)

TMU
Location: Chichester, GBR
Originality:
Custom

Highly modified and/or Restored vehicles with uprated, non-period correct engine swaps, or engines from outside the original manufacturer, and/or vehicles with significant body customizations or conversions. Generally, Custom vehicles cannot be easily returned to their original factory specifications.
Transmission: Manual
Driver side: RHD

Vehicle Details

WEBSITE

1936 Riley 1½-Litre TT Sprite Competition Sports

Chichester, GBR

1936 Riley 1½-Litre TT Sprite Competition Sports

N/A

TMU

Manual

RHD

Sold

£207,000

Bonhams

Jul 9, 2021

Details

SAVE

Lot 240: 1936 Riley 1½-Litre TT Sprite Competition Sports

Sold

£207,000 ($287,879)

TMU
Location: Chichester, GBR
Originality:
N/A

Due to the nature of this vehicle type, a consistent and accurate judgment on Originality is not feasible.
Transmission: Manual
Driver side: RHD