NOTE: This list is of the complete speed shop inventory, special thanks to MikeySpeed for maxing out the games levels and figuring out all these for us.
Starting Parts
Mo-Flo Intake Filter
Attack: 1
Durability: Durable
$598
V-Lowcity 69V (149mph) Sport Tire Set
Defense: 1
Durability: Fragile
$700
Blow-By ECU Tweaker Chip
Attack: 2
Defense: 5
Durability: Fragile
$4,399
Guzzle Buddy Tank
Attack: 2
Durability: Durable
$1,325
Level 3
Sherman (Bullet Resistant) Windshield
Attack: 1
Defense: 2
Durability: Fragile
$1,475
BuzzSaver Fuzz Detector
Attack: 3
Durability: Fragile
$2,250
Level 5
Mo-Flo Muffler
Upkeep: $10
Attack: 1
Defense: 3
Durability: Fragile
$975
FreezeIn Cold Air Intake
Upkeep: $18
Attack: 8
Defense: 2
Durability: Fragile
$6,299
Level 7
2000lb Gorilla Strut Bar
Attack: 2
Defense: 4
Durability: Durable
$3,050
Big Blue 'Whale Tail' Spoiler
Attack: 4
Defense: 1
Durability: Durable
$2,975
Level 9
Shard Shower Glass Hazard Ejector
Upkeep: $15
Attack: 5
Defense: 1
Durability: Fragile
$2,250
Get-a-Grip Non-Slip Steering Wheel
Attack: 2
Defense: 10
Durability: Durable
$13,500
Level 11
Road Hero Supercharger
Upkeep: $20
Attack: 6
Defense: 1
Durability: Fragile
$2,750
Mad Tack Brake Pad Set
Upkeep: $35
Attack: 2
Defense: 6
Durability: Durable
$750
Level 13
Tall Stak Stacker Ignition
Upkeep: $20
Attack: 7
Defense: 1
Durability: Fragile
$4,350
Level 14
Armadillo 1/4-Inch Kevlar Body Armor
Upkeep: $36
Attack: 4
Defense: 8
Durability: Durable
$3,750
Level 17
Mo-Flo Exhaust Headers
Upkeep: $35
Attack: 6
Defense: 12
Durability: Fragile
$18,500
Level 18
Get-a-Grip Non-Slip Pedal Cover Set
Attack: 2
Defense: 7
Durability: Durable
$6,750
Level 20
Y-Speed 88Y (186mph) Sport Tire Set
Upkeep: $28
Attack: 4
Defense: 9
Durability: Fragile
$6,999
Level 22
Mo-Flow (Ported and Polished) Fuel Rail
Upkeep: $42
Attack: 9
Defense: 5
Durability: Fragile
$6,250
Level 23
Bullseye GPS System
Upkeep: $82
Attack: 5
Defense: 15
Durability: Fragile
$21,500
Level 24
Granny Tranny Transmission
Upkeep: $16
Attack: 10
Defense: 4
Durability: Fragile
$14,000
Level 26
GTR Wing Rear Spoiler
Upkeep: $75
Attack: 8
Defense: 18
Durability: Durable
$29,995
Level 28
Hay Stack Roll Bar
Upkeep: $60
Attack: 3
Defense: 11
Durability: Durable
$10,500
Level 29
Cobra Coilover Adjustable Struts
Upkeep: $75
Attack: 10
Defense: 13
Durability: Fragile
$14,999
Level 31
Houdini-Hordin Screen Smoke Screen
Upkeep: $118
Attack: 14
Defense: 7
Durability: Fragile
$13,000
Level 33
21,600 Minutes Adjustable Cam Gear Set
Upkeep: $105
Attack: 16
Defense: 10
Durability: Durable
$18,999
Level 36
Road Jet Turbocharger
Upkeep: $150
Attack: 17
Defense: 7
Durability: Fragile
$17,500
Level 42
Steelers' Wheelers Stainless Steel Brake Line Set
Upkeep: $200
Attack: 11
Defense: 19
Durability: Fragile
$19,950
Level 43
Armadillo 1/2-Inch Kevlar Body Armor
Upkeep: $75
Attack: 15
Defense: 20
Durability: Durable
$42,500
Level 47
Master Blaster Ignition
Upkeep: $188
Attack: 21
Defense: 11
Durability: Fragile
$39,500
Level 52
Iron Shower Nail Hazard Ejector
Upkeep: $320
Attack: 22
Defense: 8
Durability: Fragile
$29,990
Level 57
PortManteau Intake Manifold
Upkeep: $175
Attack: 24
Defense: 12
Durability: Fragile
$55,000
Level 62
Y-Limit (99Y) (>186mph) Sport Tire Set
Upkeep: $375
Attack: 10
Defense: 26
Durability: Fragile
$42,500
Level 67
Gasper Fuel Pressure Regulator
Upkeep: $160
Attack: 28
Defense: 20
Durability: Fragile
$76,000
Level 72
Front-Mounted Mobsters Tommy Gun
Upkeep: $399
Attack: 30
Defense: 8
Durability: Fragile
$57,500
Level 77
Dri-Heev Dry Nitrous Kit
Upkeep: $235
Attack: 32
Defense: 12
Durability: Fragile
$99,000
Level 82
C4 Carbon Fiber Hood
Upkeep: $175
Attack: 22
Defense: 34
Durability: Durable
$109,000
Level 88
UnExhaustable Big Pipes Exhaust Upgrade
Upkeep: $375
Attack: 36
Defense: 25
Durability: Fragile
$97,500
Level 92
Tar Baby Oil Slick Hazard Ejector
Upkeep: $500
Attack: 38
Defense: 18
Durability: Fragile
$107,500
Level 110
XYZ Variable Valve Control
Upkeep: $675
Attack: 43
Defense: 25
Durability: Fragile
$99,500
Level 120
Reinforced Smashy Chassis Frame
Upkeep: $500
Attack: 46
Defense: 32
Durability: Fragile
$159,000
Level ?
Swiss Cheez Drilled Rotor Set
Upkeep: $799
Attack: 20
Defense: 55
Durability: Fragile
$235,000
Level ?
PepperMoth Butterfly Door Kit
Upkeep: $395
Attack: 26
Defense: 40
Durability: Fragile
$119,500
Level ?
Tammy Tranny Transmission
Upkeep: $975
Attack: 52
Defense: 27
Durability: Fragile
$189,500
Level ?
Niagra Blast Wet Nitrous Kit
Upkeep: $1,175
Attack: 58
Defense: 20
Durability: Fragile
$275,000
Level ?
Armadillo 3/4-inch Kevlar Body Armor
Upkeep: $600
Attack: 30
Defense: 49
Durability: Durable
$170,000
Level ?
Hay Stack Roll Cage
Upkeep: $1,000
Attack: 28
Defense: 61
Durability: Duarable
$300,000
Level ?
Rear-Mounted Mobsters Tommy Gun
Upkeep: $1,250
Attack: 64
Defense: 32
Durability: Fragile
$379,000
Starting Parts
Mo-Flo Intake Filter
Attack: 1
Durability: Durable
$598
V-Lowcity 69V (149mph) Sport Tire Set
Defense: 1
Durability: Fragile
$700
Blow-By ECU Tweaker Chip
Attack: 2
Defense: 5
Durability: Fragile
$4,399
Guzzle Buddy Tank
Attack: 2
Durability: Durable
$1,325
Level 3
Sherman (Bullet Resistant) Windshield
Attack: 1
Defense: 2
Durability: Fragile
$1,475
BuzzSaver Fuzz Detector
Attack: 3
Durability: Fragile
$2,250
Level 5
Mo-Flo Muffler
Upkeep: $10
Attack: 1
Defense: 3
Durability: Fragile
$975
FreezeIn Cold Air Intake
Upkeep: $18
Attack: 8
Defense: 2
Durability: Fragile
$6,299
Level 7
2000lb Gorilla Strut Bar
Attack: 2
Defense: 4
Durability: Durable
$3,050
Big Blue 'Whale Tail' Spoiler
Attack: 4
Defense: 1
Durability: Durable
$2,975
Level 9
Shard Shower Glass Hazard Ejector
Upkeep: $15
Attack: 5
Defense: 1
Durability: Fragile
$2,250
Get-a-Grip Non-Slip Steering Wheel
Attack: 2
Defense: 10
Durability: Durable
$13,500
Level 11
Road Hero Supercharger
Upkeep: $20
Attack: 6
Defense: 1
Durability: Fragile
$2,750
Mad Tack Brake Pad Set
Upkeep: $35
Attack: 2
Defense: 6
Durability: Durable
$750
Level 13
Tall Stak Stacker Ignition
Upkeep: $20
Attack: 7
Defense: 1
Durability: Fragile
$4,350
Level 14
Armadillo 1/4-Inch Kevlar Body Armor
Upkeep: $36
Attack: 4
Defense: 8
Durability: Durable
$3,750
Level 17
Mo-Flo Exhaust Headers
Upkeep: $35
Attack: 6
Defense: 12
Durability: Fragile
$18,500
Level 18
Get-a-Grip Non-Slip Pedal Cover Set
Attack: 2
Defense: 7
Durability: Durable
$6,750
Level 20
Y-Speed 88Y (186mph) Sport Tire Set
Upkeep: $28
Attack: 4
Defense: 9
Durability: Fragile
$6,999
Level 22
Mo-Flow (Ported and Polished) Fuel Rail
Upkeep: $42
Attack: 9
Defense: 5
Durability: Fragile
$6,250
Level 23
Bullseye GPS System
Upkeep: $82
Attack: 5
Defense: 15
Durability: Fragile
$21,500
Level 24
Granny Tranny Transmission
Upkeep: $16
Attack: 10
Defense: 4
Durability: Fragile
$14,000
Level 26
GTR Wing Rear Spoiler
Upkeep: $75
Attack: 8
Defense: 18
Durability: Durable
$29,995
Level 28
Hay Stack Roll Bar
Upkeep: $60
Attack: 3
Defense: 11
Durability: Durable
$10,500
Level 29
Cobra Coilover Adjustable Struts
Upkeep: $75
Attack: 10
Defense: 13
Durability: Fragile
$14,999
Level 31
Houdini-Hordin Screen Smoke Screen
Upkeep: $118
Attack: 14
Defense: 7
Durability: Fragile
$13,000
Level 33
21,600 Minutes Adjustable Cam Gear Set
Upkeep: $105
Attack: 16
Defense: 10
Durability: Durable
$18,999
Level 36
Road Jet Turbocharger
Upkeep: $150
Attack: 17
Defense: 7
Durability: Fragile
$17,500
Level 42
Steelers' Wheelers Stainless Steel Brake Line Set
Upkeep: $200
Attack: 11
Defense: 19
Durability: Fragile
$19,950
Level 43
Armadillo 1/2-Inch Kevlar Body Armor
Upkeep: $75
Attack: 15
Defense: 20
Durability: Durable
$42,500
Level 47
Master Blaster Ignition
Upkeep: $188
Attack: 21
Defense: 11
Durability: Fragile
$39,500
Level 52
Iron Shower Nail Hazard Ejector
Upkeep: $320
Attack: 22
Defense: 8
Durability: Fragile
$29,990
Level 57
PortManteau Intake Manifold
Upkeep: $175
Attack: 24
Defense: 12
Durability: Fragile
$55,000
Level 62
Y-Limit (99Y) (>186mph) Sport Tire Set
Upkeep: $375
Attack: 10
Defense: 26
Durability: Fragile
$42,500
Level 67
Gasper Fuel Pressure Regulator
Upkeep: $160
Attack: 28
Defense: 20
Durability: Fragile
$76,000
Level 72
Front-Mounted Mobsters Tommy Gun
Upkeep: $399
Attack: 30
Defense: 8
Durability: Fragile
$57,500
Level 77
Dri-Heev Dry Nitrous Kit
Upkeep: $235
Attack: 32
Defense: 12
Durability: Fragile
$99,000
Level 82
C4 Carbon Fiber Hood
Upkeep: $175
Attack: 22
Defense: 34
Durability: Durable
$109,000
Level 88
UnExhaustable Big Pipes Exhaust Upgrade
Upkeep: $375
Attack: 36
Defense: 25
Durability: Fragile
$97,500
Level 92
Tar Baby Oil Slick Hazard Ejector
Upkeep: $500
Attack: 38
Defense: 18
Durability: Fragile
$107,500
Level 110
XYZ Variable Valve Control
Upkeep: $675
Attack: 43
Defense: 25
Durability: Fragile
$99,500
Level 120
Reinforced Smashy Chassis Frame
Upkeep: $500
Attack: 46
Defense: 32
Durability: Fragile
$159,000
Level ?
Swiss Cheez Drilled Rotor Set
Upkeep: $799
Attack: 20
Defense: 55
Durability: Fragile
$235,000
Level ?
PepperMoth Butterfly Door Kit
Upkeep: $395
Attack: 26
Defense: 40
Durability: Fragile
$119,500
Level ?
Tammy Tranny Transmission
Upkeep: $975
Attack: 52
Defense: 27
Durability: Fragile
$189,500
Level ?
Niagra Blast Wet Nitrous Kit
Upkeep: $1,175
Attack: 58
Defense: 20
Durability: Fragile
$275,000
Level ?
Armadillo 3/4-inch Kevlar Body Armor
Upkeep: $600
Attack: 30
Defense: 49
Durability: Durable
$170,000
Level ?
Hay Stack Roll Cage
Upkeep: $1,000
Attack: 28
Defense: 61
Durability: Duarable
$300,000
Level ?
Rear-Mounted Mobsters Tommy Gun
Upkeep: $1,250
Attack: 64
Defense: 32
Durability: Fragile
$379,000